1. Bluetooth version: V5.3 AD6973D4 (with power amplifier) 2. Supported protocols: A2DP HFP AVRCP 3. Battery capacity: 65mAh (The headphone battery does not come with a protection board, the headphone board has a lithium battery protection IC) 4. Charging compartment battery capacity: 400mAh (with protective board) 5. Charging time: 1.5H 6. Talk time: 7.5H 7. Play time: 8.5H 8. Standby time: 200H 9. Speaker specifications: 10*8.5*2mm square speaker 10. Sensitivity: 119+/-2dB (800MV 1KHZ) 11. Impedance: 30ohms +/- 15% Ohm, at 1KHz 12. Output power: 21mW 13. Microphone sensitivity: -42DB +/-2 14. Microphone impedance: 400ohms 15. Air conduction TWS headphones: do not fit into the ears and reduce hearing loss 16. Noise reduction method: Single microphone DNS call noise reduction 17. Input charging standard: DC 5V 18. Bluetooth working frequency: 2.402GHz-2.480GHz 19. Frequency response range: 20-20KHz 20. Transmission distance: Up to 15M 21. Voice prompt: Support 22. Wearing method: Earhook type 23. Interface: TYPE-C 24. Waterproof level: IPX4
1. 蓝牙版本:V5.3 AD6973D4(带功放) 2. 支持协议: A2DP HFP AVRCP 3. 电池容量: 65mAh(耳机电池不带保护板,耳机板锂电保护IC) 4. 充电仓电池容量: 400mAh(带保护板) 5. 充电时间: 1.5H 6. 通话时间:7.5H 7. 播放时间:8.5H 8. 待机时长:200H 9. 喇叭规格:10*8.5*2mm 方形喇叭 10. 灵敏度:119+/-2dB (800MV 1KHZ) 11. 阻抗:30ohms +/- 15% Ohm,at 1KHz 12. 输出功率:21mW 13. 麦克风灵敏度:-42DB +/-2 14. 麦克风阻抗:400ohms 15. 气传导TWS耳机:不入耳 降低听力损害 16. 降噪方式:单麦DNS通话降噪 17. 输入充电标准:DC 5V 18. 蓝牙工作频率:2.402GHz-2.480GHz 19. 频响范围: 20-20KHz 20. 传输距离:远达15M 21. 语音提示: 支持 22. 佩戴方式: 耳挂式 23. 接口: TYPE-C 24. 防水等级: IPX4
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