Bluetooth Sunglass MP3 player;
Work as Bluetooth headset, Sunglass and MP3 player at the same time;

meters(33 feet)
Audio Code15 bits resolution, S/N>60DB
Frequency2. 4GHZ-2. 4835 GHZ ISM Band
Dimension(L)64 mm*(w)28. 5 Mm*(H) 11mm
ConnectionPoint-to-point
Weight55g(Including battery)
Talk time4. 0 Hours
Standby time100 hours
Output PowerodBm(class11)
Security128 bits encryption
Power Consumption30 mA
working, 100uA standby
BatteryRechargeable Li-in polymer 120mAh
ChargingDC1. 8V　Charging Time2~3 hrs
Operating Temperature-10~55
Storage Temperature-20~60