Hot sell wireless bone conduction headphone bluetooth sport headset with microphone factory direct sell sweatproof

Hot sell wireless bone conduction headphone bluetooth sport headset with microphone factory direct sell sweatproof   Product Description Click below to download video to check more. https://v.youku.com/v_show/id_XMTcwNzI5ODk2MA==.html?beta&&qq-pf-to=pcqq.c2c   Features: 1 Compatible with almost all Bluetooth-enabled mobile devices such as, for mobile phones ,smartphones,Table PC ,etc. 
2 Conducts sound through users' temporal bone
3 Super easy and fast connecting with your smartphone or other Bluetooth device for high-fidelity stereo music, movies and chatting.
4 No eardrum damage, it is an healthy, eco-friendly headphone, suitable for child, young people, and also suitable for the person who uses the headphone frequently to avoid damaging the ear.  
5 The sound transmits through the bone to auditory nerve, perfectly suitable for people has trouble in listen and suitable any other people. 
6 With Bluetooth 4.0 + EDR chip, it ensures high-fidelity stereo sound quality and stable performance.
Low consumption, offering up to 6 hours of continuous music and 5 hours of talking time. Standby time is about 240 hours.
7  It supports hands-free call and voice prompt.
8  Enjoy music wirelessly, easy to switch between calls and music, you will not miss any incoming call while listening to music.
9  Its Sweatproof U-shaped ergonomical design is suitable for walking, running, climbing, skating, skiing sport, diving, etc. 10 Provides the perfect, comfortable fit to the back of your head
    Specifications: -Bluetooth version: V 4.0
-Bluetooth power: Class II
-Li battery: 3.7V/200mAh
-Standy time: 30 days
-Charging tiem: around 3 hours
-Bluetooth frequency: 2402HZ~2480Hz
-Transission range: 10 meters
-Vibrator diameter: Φ15m
-Vibrator ipedance: 8Ω
-Frequency response: 50~20KHz
-Microphone size: 4.0*1.5mm
-Microphone sensitive: -52dB+3dB
-Microphone direction: Omni directional
-Microphone response: 100Hz~8KHz
-USB-USB micro cable lenght: 80cm