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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 0～45℃ ,Storage temperature -20～70℃
charging port	Type C
Controllers	(L/M/S) Silicon ear -cap

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