■ Master control chip: Jerry 6955F
■ Bluetooth version:5.0+EDR compatible
■ Frequency range:2.402GHZ - 2.480GHZ
■ Transmission power: +2dBm, Class2 output power
■ Effective working range:≥10M
■Support Bluetooth protocol:AVRCP 1.0, GAVDP 1.0, AVDTP 1.0, A2DP 1.0
■ Frequency response: 20hz-20khz
■ S/N ratio:≥60dB
■ Speaker Specifications
40mm steel magnetic horn 12.5*1.5 four-hole U cup
■ Vibrating membrane 19μ
■ Microphone size: microphone high frequency omnidirectional microphone -42dB ±3dB
■ Power supply: 3.7VDC (built-in a-class rechargeable 400mAh lithium battery)
■ Talk time:8 hours;Power off time:200 days;Charging time:3 - 4 hours
■Operating current:≤ 60mA
■Off current:< 300 UA
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