1. Chip: Jerry 7003D8 noise reduction + light sensing in-ear detection 2. Version: 5.4 [binaural call] 3. Working frequency: 2.402-2.480GHz, 4. Support protocols: A2DP/AVRCP/HFP/HID/AVCTP/AVDTP, and SPP 5. Transmission distance: 15M [barrier-free] 6.Response frequency: 20~20000Hz 7.Speaker unit: ΦF13 titanium film, 32Ω±15%, 7.118±3DB 5mW 8.Microphone: 2718 silicon microphone -42±3dB 9.Charging input standard: contact, DC4.75-5.25 V/600MAH 10.Battery type: 3.7V polymer battery 500mAh with protection board (3C fast charging battery), headphone battery 30mah 11.Charging time: 1h 12.Headset working time: the measured 100% volume plays continuously for about 5.5 hours

- 2024 new design A8 pro private mould ANC TWS game earphone






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