SHENZHEN RAINYEAR SICENCE&TECHNOLOGY CO.,LTD

 1) Beanie Material: 75Polyester+20%Cotton+5%Spandex;
2) Bluetooth: BQB Certificated Bluetooth V4.1/2.1 AIROHA Chip, with EDR Tech,10M/33Ft,Transmitssion Range;
3) Rated Power: RMS 10mW x 2;
4) Speaker Unit: 32Ω/30mm;
5) Frequency Response: 20HZ-20KHZ;
6) Battery: 3.7V Certificated High Quality 140mAh/100mAh Rechargeable Li-ion Battery;
7) Standby Time: Over 72/60 Hours;
8) Play Time: Over 6/5 Hours; 
9) Charge Time: DC 5V Approx  40 Minutes;
10) With Overcurrent, Overcharge & Overheat Circuit Protection Design on PCB.