Travel Wireless Bluetooth Eye Mask Sleep Mask With Headphone

•  Soft velvet fabric with elastic strap for comfortable fit .
•Built – in microphone for hands free use .
•Rechargeable battery and USB cable included .

•Feature :  V3.0+ EDR Bluetooth version , available for most devices with Bluetooth function . 

•Set-in mic so that the user can answer cell-phone hands free .
•Set-in  Li-ion chargeable battery .  charge via USB cable , long stand-by time .
•Support  power display  on IPHONE & Android phones .

•Specifications :
1.Bluetooth version : V 3.0 + EDR .
2.Frequency response : 2.402 Ghz -2.480 Ghz.
3.Bluetooth working range : 10m / 33feet .
4.Transmission distance of mic < 1m.
5.Rechargeable lithium battery : 3.7v/130mAh.
6.Charging time : 1-2 hour .
7.Stand-by time ： 360 hours .
8.Continuous working time : about 6 hours .
9.Support : HSP , HFP , A2DP , VRCP , hands-free call .
•Packaging : 1 pc /color box .