It is recommended that the external sound holes on the whole case be as close to the MIC as possible, which can simplify the design of gaskets and related mechanical structures. At the same time, ...
Model#R908 Mono Bluetooth Headset Mode:A2DP/AVRCP/HFP Chipset: AB5616A3 V5.2 Frequency: 2.4GHz Transimit Power: Class 2 Music Time: 6.5H Talking Time: 4.5H Standby Time: 40H Charging Time:2H Model...