Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: ePark Necklace Wireless Bluetooth Headset in Ear Stereo Bluetooth 4.0 Headphone Neckband Black
Product description: Compact and lightweight portable wireless bluetooth headsets, real quality, a worthy to buy gift Comfortable and anti-sweat neckband, easy and convinient to carrying In the ear earbud, offer stereo/aptx music also noise cancellation Can work with 2 devices(iphone 4s, iphone 5s, ipad etc) seamlessly, auto switch Up to 4-10 hours talking time New design, all buttons locate on one side Can work with phones, computers, laptop Microphone included, can use in MSN, Skype online chat Charging time is about 2 hours Working range is about 33 feet(without barrier) All keys on left side, includes multi function key, previous key, next key, power switch key, microUSB charging port Most people use it to make life be free and easier When you talk on phone for 30 mins, it's a very hard job to hold the phone with hands. With this neckband headset, you can free your hands to decorate your nail or feed your fish When you are driving, it's more safe to answer the call without holding your 4.7 inch phone When you are cooking in kitchen, you may want to listen to music, how about carrying the music with you? When you are busy but waiting for an important calls, let this headset remind you the coming calls by vibration There are more this wireless headset can do for you, just take one home Package: 1X Bluetooth Headset Black Color in Beautiful Retail Box 1X USB Charging Cable 1X Manual
Product feature: Newest Bluetooth 4.0 Aptx Edition, Pair with cell phone, make or answer calls hands free via microphone, your hands can be free when chat on phone, keep your hands warm in this winter, Listen to stereo music wirelessly via bluetooth technology, take the music anywhere by wear this neckband headset, Work with phones, laptop, ipad, tablet, mp3 player, game palyer etc, with its help you will not miss any calls, enjoy music, isolate from others or noise, Bluetooth 4.0 (CSR chip), stereo and can work with 2 devices seamlessly, low comsunption and best bluetooth headset at market, Rechargeable lithium battery, offer long working time/standby
Product brand: E.Park
Target attributes: Connectivity
Answer: attribute: connectivity
value: bluetooth headset
source: product title
attribute: connectivity
value: wireless
source: product description
attribute: connectivity
value: bluetooth
source: product feature
attribute: connectivity
value: bluetooth
source: product title
attribute: connectivity
value: bluetooth
source: product description