P3PC-6641-05EN*P 3 P C - 6 6 4 1 - 0 5 E N*

Happy Hacking Keyboard
Professional HYBRID(US Layout/Non-Printed)
User’s Guide

This product can be used with the following computers or devices.
・ Computers with Windows® (Windows® 7/Windows® 8.1 or later) installed (*1)
・ Computers with Mac OS (USB connection: macOS 10.12 or later/Bluetooth connection: macOS
10.14 or later) installed
・ Mobile devices with iOS (iOS 11.4 or later) or iPadOS (iPadOS 13.0 or later) installed
・ Mobile devices with AndroidTM (AndroidTM 4.4 or later) installed*1: Computers with Windows® 7 installed cannot be connected via Bluetooth. Use a USB cable toestablish a connection.

Front

Microsoft and Windows are trademarks of the Microsoft group of companies.
Mac, macOS and iPadOS are trademarks of Apple Inc.
Bluetooth is a registered trademark of Bluetooth SIG, Inc.
Android is a trademark or registered trademark of Google LLC.
Other company names and product names are the registered trademarks or trademarks of the respective companies.
June 2023

Checking the Items in the Package
Make sure that all items shown below are included in the package:□ Safety Precautions (x1)
□ User's Guide (this manual) (x1)

If items other than those shown above are included in the package, keep them as well. Treat the items
that are included in the package with care. Retain the box and any packaging material as they would beneeded to protect the keyboard should it be necessary to return the item in the event of a warranty claim.
If you ﬁnd that an item is missing or defective, contact the distributor/dealer where you purchased thisproduct.
This product does not include a Bluetooth USB adapter or a USB cable.
If the device that you use does not support Bluetooth, a commercially available Bluetooth USB adapter
or USB cable is required.

Item

ATTENTION

Be sure to turn oﬀ the power before setting any of the DIP switches. If the power is on, the settings
you changed are not applied.

the arrow.
The figure below shows ON/OFF for each DIP switch.

・ OFF mode (power oﬀ)
This mode indicates the following statuses:

LED Indicator

StatusDescription

Turned Oﬀ

The keyboard is in connected
mode/OFF mode

ｰ When no keys are pressed for 30 minutes
in connected mode (when the SW6 is set
to ON or when power is supplied via a
USB Type-C cable, refer to the note forSW6 in "Switching the Setting Mode")

Blinking in Blue The keyboard is in pairing(twice per second) standby mode.

ｰ When no keys are pressed for 10 minutes in pairing mode

Status of the LED Indicator

Lit in BlueThe keyboard is in connect
standby mode

Blinking in Or- When the LED indicator blinks inorange once every 30 seconds, theangeremaining battery power is low.
When the LED indicator blinks
in orange twice every 15 seconds, replace the batteries.
This product has the following operation modes.
・ Connected mode
The keyboard is connected to a device. You
can use the keyboard for the connected device.
When you hold down Fn and then press Q ,the keyboard enters pairing standby mode.

DIP Switch

294 mm (W) x 120 mm (D) x 40 mm (H)WeightApprox. 540 g (without the batteries)

USB Type-C Connector

Description

Power
SwitchTo turn on the power, hold down the power switch for 1 second or longer. To turn oﬀ
the power, hold down the power switch for 2 seconds or longer. Note that when the
power does turn oﬀ, the LED indicator lights in orange and then turns oﬀ.

Compatible Stan- Bluetooth Version 4.2 Class 2
dards

Battery Box

Insert batteries.
For details, refer to "When Using Batteries".

ProﬁleBluetooth HOGP (HID over GATT proﬁle)Radio Frequency

2.4 GHz band

USB Type-C
Connector

Use a USB Type-C cable to connect the keyboard to the device that you use or to
supply power to the keyboard instead of using the batteries.
For details, refer to "Connecting the Keyboard (via a USB Connection)" and "When Supplying Power via a USB Type-C Cable".
This product does not have a charging function for rechargeable batteries.
Use an optional USB Type-C cable that is sold separately or a commercially available
USB Type-C cable.
For details about how to purchase optional items, contact the distributor/dealer where
you purchased this product.

Radio Frequency GFSK modulation
Modulation
Radio Wave Out- Approx. 10 m (when no magnetic objects are in the vicinity)
reachBattery Replace- Interval that is estimated when size AA alkaline dry batteries are used
ment Interval
Approx. three months (This is not guaranteed because it is a value that is estimated from the test conducted in our environment.)
Required Batteries Two size AA dry batteries(Size AA alkaline dry batteries, size AA manganese dry batteries, and size AA
nickel hydride secondary batteries)

OFF

OFF

HHK modeONOFF

Win modeOFFON

Mac modeON

ON

DIP Switch

StatusKey

Function

SW3 (*1)

OFF

DeleteDeleteON

DeleteBS (Back Space)OFF

Left ◇Left ◇ON

Left ◇

Fn

Tilt Stands
Part Name

Description

DIP Switches

Used to switch the setting mode.
For details, refer to "Switching the Setting Mode".

Tilt Stands

Used to adjust the height of the keyboard.
For details, refer to "Adjusting the Height of the Keyboard".

＋

−

＋

＋

−

＋

Mac OS/iOS/iPadOS

ATTENTION

Check the positive ＋ and negative − direction of the 2 batteries, and insert them correctly.

3 Attach the battery box cover back.

When attaching the cover, make sure you push it until it locks in place.

7

DIP Switch

StatusKey

Function

SW5

OFF

Alt

Alt

◇

◇ (*2)

ONAlt◇ (*2)

◇

Alt

OFF

Power Saving Enabled (*3)

ONPower Saving Disabled (*4)

When Supplying Power via a USB Type-C Cable
Connect a USB Type-C cable to the USB Type-C connector
Use an optional USB Type-C cable that is sold separately or a commercially available USB Type-C
cable.
For details about how to purchase optional items, contact the distributor/dealer where you purchased
this product.

*1: In Mac mode, SW3 is disabled.
*2: In Win mode, ◇ functions as the [Windows] key.
In Mac mode, ◇ functions as the [Command] key.
*3: If the keyboard is left unused for 30 minutes, it automatically enters OFF mode. However,if the keyboard is connected to the device via a USB cable, it does not enter OFF mode. In
addition, when Power Saving Enabled is set, the device in use cannot be resumed from thesuspended status by pressing a key.

USB Type-C Connector

ATTENTION

The battery power is not consumed (except for natural discharge).
Remove the batteries if you do not use them for a long time.

*4: Even if the keyboard is left unused for a long time, it does not automatically enter OFF mode.
Because of this, Power Saving Disabled consumes battery power faster than Power Saving
Enabled. If the keyboard is disconnected from the device in use, press any key or the powerswitch to reconnect the keyboard to the disconnected device.

3 Attach the DIP switch cover back.

When attaching the cover, make sure you push it until it locks in place.

Daily Care

The tilt mechanism is equipped on the bottom of
the keyboard, allowing you to adjust the heightat two levels. Raise one of the tilt stands thatsuits you until it locks in place. Use the same tilt
stands on the right and left sides.

4

Windows®/AndroidTM−

Adjusting the Height of the Keyboard

BottomDIP Switches

2

2 Insert the batteries in the direction shown in the figure.

Setting Mode
SW2

SW6

Part Name

Connection Method Bluetooth wireless connection method
USB2.0 (Type-C)

Battery Box Cover

5

Battery Box

Power Switch

1 Remove the battery box cover on the bottom of the keyboard by pulling it to-

SW1

SW4

Ambient Tempera- 5 to 35°C
ture
Dimension• Use size AA batteries for this product.
• Be sure to turn oﬀ the power before replacing the batteries.

2 Switch the setting mode by referring to the tables below.

Key Speciﬁcations Electrostatic capacitive switch/Step sculpture/Key pitch: 19.05 mm

20 to 80%RH (non condensing)

When Using Batteries

DIP Switch CoverSpeciﬁcation

Ambient Humidity

When batteries are inserted into the keyboard (or power is supplied via a USB Type-C cable), it
turns on and enters connect standby mode in order to connect to the device that it was connectedto last. However, if the device is not ready to be connected to the keyboard when batteries are used
for the power supply, the keyboard turns oﬀ.

wards you while pushing it to the left.

3

Back

ATTENTION

OFF(Factory Default)

ｰ When the keyboard is disconnectedfrom the device in use
To resume from OFF mode, hold down the power switch(for 1 second or longer) to connect it to the device again.
・ Pairing standby modeThis mode indicates the status before the
keyboard enters paring mode.
When you hold down Fn and Control in thisorder and then press one of the number keys
( 1 to 4 ), the keyboard enters pairing mode.
For details, refer to "Switching the Setting
Mode of the Keyboard to the Pairing Mode".
・ Pairing mode
The keyboard is ready to be connected to a device.
・ Connect standby modeThis mode indicates that the keyboard is waiting for the device to be connected again. When you hold down Fn andthen press Q , the keyboard enters pairing standby mode.

Blinking in Blue The keyboard is in pairing(four times per mode.
second)Supplying PowerATTENTIONON

ｰ When the power switch was held down(for 2 seconds or longer) in any mode

1

Specifications

Switch the setting mode according to the device that you use. By using the DIP switches on the bottom of the keyboard, you can change the keyboard setting mode. The HHK mode is set as the factory
default.
You can also change some key codes. To change the settings for the DIP switches, use a tool such as
a ﬂathead screw driver.

1 Remove the DIP switch cover on the bottom of the keyboard in the direction ofPart Names and Functions

Thank you for purchasing Happy Hacking Keyboard Professional HYBRID (US Layout/Non-Printed).
Please read this User's Guide and use this product safely and correctly. Be sure to read and understand "Safety Precautions" (a separate manual) before using the keyboard.

□ Keyboard (x1)
□ Size AA alkaline dry battery (for checking operation) (x2)

Switching the Setting Mode

For a connection via Bluetooth, the device that you use needs to support Bluetooth 4.0 or later.

IntroductionⒸ PFU Limited 2019-2023

System Requirements

If this product gets dirty, wipe it with a dry cloth.

ATTENTION

To avoid deterioration and discoloration, never use alcohol or any other volatile solutions.

Low

Troubleshooting
For troubleshooting tips for this product, refer tothe following website:
https://happyhackingkb.com/

MiddleHigh68Connecting the Keyboard (via a Bluetooth Connection)
Connect this product to the device that you use via a Bluetooth connection.
To use a Bluetooth USB adapter, make the Bluetooth function available by referring to the manual of
the Bluetooth USB adapter.
After connecting this product to a device, installing the driver software starts. It may take several minutes for this product to be ready for use. Wait for a while.

Mac OS

iOS/iPadOS

The menu names and window names vary de-Menu names and screen names vary depending

pending on the operating system version.

on the iOS or iPadOS version.

1 Click items in one of the following

1 Tap [Settings] g [Bluetooth].
2 Turn on [Bluetooth].
3 Tap [HHKB-Hybrid_n (*1)].

ways.

ｰ [Apple] menu and select [System Pref-

ATTENTION• Depending on the device that you use, you need to switch the setting mode of this product in advance. For details, refer to "Switching the Setting Mode".
• Depending on the device that you use, this product may not be recognized when the device resumes from a suspended status. In such a case, turn this product oﬀ then back on.

1 Switching the Setting Mode of the Keyboard to the Pairing Mode

Making this product and your device able to communicate with each other by registering informationon the product with the device and information on the device with the product is called "pairing".
You can register the pairing information for up to four devices with this product by assigning the information of each device to a number key from 1 to 4 .
If you register the pairing information for multiple devices, you can switch to the device that you want to use easily.
For details about how to switch devices, refer to "Switching to a Device That You Want to Use".

Establishing a Connection
for the First Time

Adding a Device That You Want to Use
1 Hold down the power switch of thisproduct (for 1 second or longer).

Hold down the power switch of this product (for1 second or longer).
⇒ The power turns on, and it automaticallyenters pairing mode.

⇒ The power turns on, and the LED indicator lights in blue then turns oﬀ.

2 Hold down Fn and then press Q .

At this time, the LED indicator blinks in bluefast.
The pairing information for a device that you
want to use is assigned to 1 .

If you connect a USB cable to supply power
when no pairing information is registered,the keyboard is automatically connected tothe device via a USB connection. If you wantto switch to a Bluetooth connection, refer to"Adding a Device That You Want to Use" andperform step 2 onwards.

Connect this product to the device that you want to use by registering information on the product withthe device and information on the device with the product.

Windows 10 or later

Windows 8.1

1 Right-click the [Start] menu, and1 Click [ ] on the lower left side of
the Start screen and select [Control
Panel] under [Windows System].

®

⇒ The [Windows Settings] window isdisplayed.

To display [cursor.

2 Click [Devices].

], move the mouse⇒ The [Control Panel] window appears.

⇒ The [Bluetooth & other devices] window
appears.

2 Click [Add devices].

3 Click [Add Bluetooth or other de-⇒ The [Add a device] window appears.

3 Click [HHKB-Hybrid_n (*1)], andvice].

⇒ The [Add a device] window appears.

then click the [Next] button.

4 Click [Bluetooth].
5 Click [HHKB-Hybrid_n (*1)], and*1: n indicates a number key from 1 to 4,
which is used to register pairing information.

then click the [Next] button.

⇒ A several digit number for pairing isdisplayed.

*1: n indicates a number key from 1 to 4,
which is used to register pairing information.

4 On this product, enter the displayed

number for pairing, and then press⇒ A several digit number for pairing isdisplayed.

Return .
⇒ A connection is established.

6 On this product, enter the displayed

At this time, the LED indicator turns oﬀ.

number for pairing, and then press
Return .
⇒ A connection is established.

3 On this product, enter the displayed

Win
mode

Mac
mode

1 to =

F1 to F12

F1 to F12

○

○

○

\

Ins

Insert

○

○

○

`

Del

Delete○○○DeleteBS ClearBack Space

○

○

−

Clear (keypad)

−

−

○

number for pairing, and then press
Return .

I

PSc/SRq

Print Screen/System Request

○

○

○

O

ScrLk

Scroll Lock

○

○

○

⇒ When "Connected" is displayed for[HHKB-Hybrid_n], a connection is established.

P

Pus/Brk

Pause/Break

○

○

○

K

Home

Home

○

○

○

L

PgUp

Page Up

○

○

○

,

End

End

○

○

○

.

PgDn

Page Down

○

○

○

Tab

Caps

Caps Lock−○ (*1)○

ReturnEnter

Enter (keypad)

−

○

○

N

＋

＋ (keypad)

−

○

○

At this time, the LED indicator turns oﬀ.

number for pairing, and then press
Return . (*1)

AndroidTM⇒ When "Connected" is displayed, theconnection is established.

Menu names and screen names vary depending

At this time, the LED indicator turns oﬀ.

on the device that you use.

*1: If there is the [Connect] button, click it.

1 Tap [Settings] g [Connected devic-

4 When the [Keyboard Setup Assis-

es].

2 Tap [Pair new device].
3 Tap [HHKB-Hybrid_n (*1)].

dow that appears.

*1: n indicates a number key from 1 to 4,
which is used to register pairing information.

6 When [Select the Keyboard Type]is displayed, select [ANSI (UnitedStates and others)] and click the[Done] button.

If you specify the same number key as a number key which
has already been used to register pairing information foranother device, the device with the pairing information thatis registered more recently will be the one that can be used.

2 Connecting the Keyboard (with the Pairing Operation)then click [Settings].

⇒ A several digit number for pairing isdisplayed.

5 Follow the instructions on the win-

HHK
mode

4 On this product, enter the displayed*1: n indicates a number key from 1 to 4,
which is used to register pairing information.

⇒ A several digit number for pairing isdisplayed.

4 On this product, enter the displayed⇒ When "HHKB-Hybrid_n" is displayed in[Available devices], the connection isestablished.
At this time, the LED indicator turns oﬀ.

Connecting the Keyboard (via a USB Connection)
1 Connect a USB cable to the USB Type-C connector on this product and a USB
port on the device that you use.

2 When this product is recognized on the device, follow the instructions displayed in the window to install the driver software.

⇒ A connection is established. At this time, the LED indicator turns oﬀ.
Note that, when a connection is established via Bluetooth or a connection was established via Bluetooth last time, you can switch the connection to a connection via a USB cable by holding down Fn
and Control in this order, and then pressing 0 .

Switching to a Device That You Want to Use
When you turn on this product, it is automatically connected to the device that it was connected to last.
To switch to another device connected via Bluetooth, hold down Fn and Control in this order, and thenpress the number key ( 1 to 4 ) that the pairing information for the desired device is assigned to.
At this time, the LED indicator lights in blue then turns oﬀ.
For details about how to register pairing information, refer to "Connecting the Keyboard (via a Bluetooth
Connection)".
When a device is connected via a USB cable, you can switch the connection to a connection via a
USB cable by holding down Fn and Control in this order, and then pressing 0 .

In this case, this product turns oﬀ when the computer is turned oﬀ or the USB cable is disconnected,
even if this product is equipped with batteries.

12

Deleting Pairing Information
Individually

Deleting Pairing Information
All at Once

1 Hold down Fn and press Q to

1 Hold down Fn and press Q to

2 Hold down

, andDelete in this order, and then press
the number key ( 1 to 4 ) that thepairing information that you want todelete is assigned to.

2 Hold down Fn and Z in this order,

The LED indicator lights in orange while thepairing information is being deleted and enters
OFF mode when the deletion is complete.

*1: If one of the DIP switches is set in one of
the following cases, press [`/~] located justabove [Delete] instead of pressing [Delete].

switch to the pairing standby mode.
Fn ,switch to the pairing standby mode.

Controland then press Delete . (*1)

The LED indicator lights in orange while thepairing information is being deleted and enters
OFF mode when the deletion is complete.

ｰ SW2 is set to ON (which changes to
Mac mode)ｰ SW3 is set to ON ([Delete] works as[BS])

Assigning the Mac OS Keys
The Mac OS keys such as the [Command] key are assigned to keys on the keyboard as shown below.
These assignments are enabled only when the setting mode is Mac mode.

M−− (keypad)

−

○

○

H

＊

＊ (keypad)

−

○

○

J

/

/ (keypad)

−

○

○

［Option］［Command］

[

↑

↑

○

○

○

The multimedia keys are assigned as shown below. These keys must be pressed together with Fn .

/

↓

↓

○

○

○

;

←

←

○

○

○

→

→

○

○

○

A

Vol _Dn

Volume Down

−

−

○

S

Vol _Up

Volume Up

−

−

○

D

Mute

Mute

−

−

○

［Command］［Option］［Volume Up］［Volume Down］［Mute］ ［Eject］

13

Key

number for pairing, and then press
Return .

When a connection is established via a USB cable, the LED indicator lights up for one second.

10

Key

11

To check which number key the pairing information has been assigned to for the currently connected
device, press the power switch lightly.
This leads the LED indicator to blink. The number of blinking times indicates the number key that is
assigned.
Blinks once: 1 key
Blinks twice: 2 key
Blinks three times: 3 key Blinks four times: 4 key

At this time, the LED indicator turns oﬀ.

To use the codes that are shown on the front facing side of the keys such as F1 to F12, Pg Up (PageUp), Caps, and arrows (cursor), hold down Fn and press the relevant key. Make sure that available
codes vary depending on the keyboard mode. For details, refer to the following table.
Setting Mode

⇒ A several digit number for pairing isdisplayed.

then click the [Connect] button.

3 Hold down Fn and Control in this order,

The pairing information for a device that you want to
use is assigned to the number key that you speciﬁed.

®

2 Click [HHKB-Hybrid_n (*1)], andDeleting the Pairing Information

Symbol on the Meaning
Side Facing theFront*1: n indicates a number key from 1 to 4,
which is used to register pairing information.

erences] g [Keyboard] g [Set Up
Bluetooth Keyboard]⇒ The keyboard enters pairing standby
mode, and the LED indicator blinks in blue.

⇒ The keyboard enters pairing mode, and the LED
indicator blinks in blue fast.

9

ｰ [Apple] menu and select [System Pref-tant] window appears, click the[Continue] button.

and then press the number key ( 1 to 4 )that is used to register pairing information.

HINT

erences] g [Bluetooth]

How to Use the [Fn] Key

15

Editing a Keymap

Symbol on the Meaning
Side Facing the
Front

Setting Mode
HHK
mode

Win
mode

Mac
mode

F

Eject

Eject

−

−

○

Esc

Power

Power

−

−

○ (*2)

An editing tool for a keymap is available at the following website:
Note that the editing tool for a keymap can be used on a computer with Windows® (Windows®7/Windows®8.1 or later) or Mac OS (macOS 10.14 or later) installed.

Right ◇

Stop

Stop

○

−

−

https://happyhackingkb.com/download/○ : Supported − : Not supported*1: You need to press

Shiftat the same time depending on the driver and the operating system.

*2: It is not possible to turn the power on.
Codes in italics are only for Mac OS.

Key Combinations for Switching Pairing Modes
and Operation Modes
Operation

Key Combination
LED(Press the keys in the order shown below,
starting with the key on the far left.)

Registering pairing inforFn + Q
mationFn + Control +Blinks in blue (twice per second)
Blinks in blue fast (four times
per second)

1 to 4Blinks in blue (twice per second)

Deleting all of the pairing
Fn + Q
information

Blinks in orangeoﬀ (Power oﬀ)

Fn + Z + Delete

TurnedBlinks in blue (twice per second)

Deleting pairing informaFn + Qtion individuallyFn + Control + Delete +1 to 4Blinks in orangeoﬀ (Power oﬀ)

TurnedLit in blue

Turned oﬀ

Switching the connection
Fn + Control + 0
to a USB connection

Lit in blue

Turned oﬀ

Canceling the pairing mode Fn + X

Lit in blue

Turned oﬀ

Switching to the Win mode
Fn + Control + W(*1)

Turned Oﬀ

Switching to the Mac mode Fn + Control + M

Turned Oﬀ

Switching the connected
Fn + Control +device (Bluetooth)

1 to 4

PFU Limited declares that the radio equipment type HHKB is in compliance with FCC.
The full text of the FCC of conformity is available at the following internet address:
https://happyhackingkb.com/r/cert

Notice・ Copying of the contents of this document in whole or in part is prohibited under the copyright law.
・ The contents of this document are subject to change without notice.

Regulatory Model PD-KB800*1: When the DIP switches are set for the HHK mode, the setting mode is switched to the HHK mode.

14

16