This is aTelPal wirelss Bluetooth headset with CSR8615-V4.0 high quality Bluetooth chip as the core unit. It is characterized by low power consumption with simple and fast matching. It supports HFPV1.6, HSPV1.2, A2DPV1.2, AVRCPV 1.4. And it is applicable to Bluetooth phones from 1.1 to 4.1. Professional Noise Cancelling Wireless Headset: this Bluetooth headphone is equipped with single-direction noise-proof microphone, can remove most of the background noise outside the range of 1 meter, and provide a clear call for in some noisy environment like in a busy office, a crowded public area, in the train or airplane during travelling. Light Weight Phone Headset for All Day Comfort: The design meets the mechanical structure of human body. It is comfortable to wear, especially suitable for long time wearing. The microphone arm and boom arm are easy to adjust for the best This wireless headset with mic not only supports the hands free talk over cell phones, but also let you enjoy wireless high quality music. Also, it allows you to switch the functions between music and answering calls. When you are listening to music, you can receive or dial out calls from Bluetooth phones with headset. After you hang up the phone, the music starts to play automatically. USB rechargeable and long hours working: This wireless headphone is USB rechargeable. It can work for 12 hours for talking or listening to music and 250 hours for standby. Volume could be controlled. This over ear wireless headset can be used to computer with supporting Bluetooth technology, by which you can talk to other through network communications like for Skype, , Messenger, , etc. Material: plastic colour: Black Package Contents: 1 x Wireless Headset Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.