HBS-740 Wireless Stereo Bluetooth 4.0 Headset Neckband Style Headset Earphone Headphone.

Features: Latest Bluetooth, high fidelity sound quality.
Enhanced noise reduction, good choice for listening music, watching
movie, talking on the phone, etc. Support multi-point connection,
can connect two Bluetooth devices at the same time. Allow you to
power on/off, answer/hang up/reject/redial call, pause and play,
vol+/-, next/previous track. Voice answer: say "Yes" answer the
call, "No" refuse the call. Voice prompt, voice incoming phone
number. Earbud design, no need earhook also can be used. Compatible
with Bluetooth enabled devices, such as for iPhone, iPad, HTC,
Lenovo,for Samsung, Tablet PC, etc. Build-in rechargeable li-battery,
can be charged via USB cable. Real-time battery status can be
showed on some smartphones