Specification:

Bluetooth IC: CSR8640
Bluetooth Version: 4.1
Bluetooth Profiles: A2DP、HFP、HSP、AVRCP
Talk Time: 9H
Play Time: 8H
Standby Time : 450H
LED: White、Orange
Supported Features: Support the iPhone
battery display, Voice prompt, Connect the two devices
Certification: BQB, CE, ROHS, FCC
Battery type: Lithium polymer battery
Battery Output Voltage: 3.7V
Battery Capacity: 100mA/h
Full Charging Time: ≤2h

Speaker Size: Ф10

Speaker Sensitivity: 98dB±3db

Speaker Impedance: 32Ω

Speaker max input Power: 5mW

Speaker frequency Range: 20-20KHZ

Microphone frequency range: 20-20KHZ

Microphone Sensitivity: -42db/±3dB

Product Details
M21A
M21A
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