Search query: 4 channel speaker selector

Product: Nobsound Little Bear MC102 Mini 2(1)-in-1(2)-Out 3.5mm Stereo Audio Switch Audio Switcher Passive Speaker Headphone Manual Selector Splitter Box Audio Sharing (Black)
Brand: Douk Audio
Color: Black
Relevance: Substitute
Features:

2-IN-1-OUT (switch audio sources) / 1-IN-2-OUT (switch audio outputs)

Input (3.5mm) connections: Computer / Phone / Music player. etc.

Output (3.5mm) connections: Active speaker / Headphone / Amplifier. etc.

High quality volume control knob; Smoothly control the volume

Mute button; Mute the device with just one key; Very useful for special conditions

A / B button; Can conveniently select the device you want to use as the audio input or output

No power and additional software required

Hot-swappable (no need to reboot devices)

Compact and super mini size; Easy to place and suitable for your desktop and office

Parameters:

Interfaces: 3 * 3.5 mm jack

Knob and key: 1 * volume knob; 1 * A/B selector; 1 * mute botton

Dimensions: L82 * W55 * H20 mm

Weight: 100g

Packing List:

1 * audio selector (audio cable not included)
2(1)-IN-1(2)-OUT 3.5mm Audio selector designed for customers having several audio sources and outputs
How to use: ① connect two audio sources (like CD player / computer) to A/B ports and one audio output (like active speakers) to IN/OUT port; ② connect one audio source to IN/OUT port and two audio outputs to A/B port
Main functions: ① select audio input between A and B with A/B siwtcher and get one output; ② select audio output between A and B to receive one input
Volume control; One key to mute; Super small size; Passive device; No power needed; Won't affect sound quality
New version adopts customized potentiometers and isolation modules, which can fix the possible volume adjustment and background noises. We also add a new 3.5mm port between A&B ports according to some customers' needs.

Product: NETmate 2 PORT 3.5mm STEREO Manual Switch Box AUX Audio Speaker selector(Wall Mount Hole Built-in, wall or table available)
Brand: Miraview Netmate
Relevance: Substitute
STEREO 2: 1 bidirectional selector The stable button-type 3.5mm STEREO manual selector is a two-way manual selector that can be selected by connecting two audio sources to one speaker or one audio source to two speakers.
STEREO 2 (input / output): 1 (input / output) selector
Easy button type STEREO selector
1 ~ 2 port: 3.5mm STEREO, IN / OUT port: 3.5mm STEREO
Non power operation
Cable not included