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bluetooth speaker with earphone 2 in 1

Bluetooth version  V5.3
Bluetooth protocol HSP,HFP,HDP,AVRCP,A2DP
 Bluetooth chips. Speaker: JLAC6955F    Earbuds: JL6976D4
Wear In ear 
Horn in diameter. 13mm/32Ω /6u for earbuds                                      36mm /4Ω/3W for speaker
Impedance Speaker: 4 ohm    Earbuds:16 ohm
Horn sensitivity 112±1.5dB @ 1k Hz 
Rated power 2 mW 
Mic Omni-direction, MEMS microphone
mic frequency range 20Hz-8KHz @ ±3dB
mic wheat sensitivity -42dB±1dB 
Carrier frequency 2.402G Hz-2.480G Hz
Shell material ABS+PC  
charging time 1.5hours 
Headset battery capacity. 40mAh
Music playing time 7hours 
Charging the battery capacity 600mAh
Charging the headphones to recharge electric times About 3-4 times 
Charging current. 50mAh
temperature Working temperature 045 ,Storage temperature -2070
charging portType C
Controllers (L/M/S) Silicon ear -cap  


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