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Model: GT839

Drive diameter: 40mm

Chipset: JL7018 +JL7016 (2.4G+BT+wired)

Supported protocols: AVRCP1.6.2, A2DP1.3.2, HFP1.8, HSP1.2

Audio decoding: SBC，AAC，

Bluetooth distance: 10M

Frequency: 2.402 ghz-2.480-ghz

Microphone sensitivity: -42 ± 3DB

Sensitivity: 115 ± 3DB

Impedance: 32 ohms

Frequency response range: 20HZ-20KHZ

Battery capacity: 800mAh

Running time(turn off the lights): about 45 hours

Playing time(turn on the lights): about 15hours

Low latency: ≤ 30ms(2.4G)

Charging time: about 2 hours

Charging interface: TYPE-C USB