Shenzhen Ruijiahua Technology Co., Limited
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Specification :
* BT Version:5.0
* Chipset: JL
* Support:HFP,HSP,A2DP
* Max playing time : About 4-5 hours
* Stand by:4-5 days
* Distance 10-15Meter
* Battery Capacity: 30 MAH
* Battery Capacity of charging box: 260mAh
* Speaker:6mm
*Sensitivity:98dB+/-5dB
*Frequency Range: 20Hz -20KHz