ePark Necklace Wireless Bluetooth Headset in Ear Stereo Bluetooth 4.0 Headphone Neckband Black 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