Charging time: Approx. 1-2 hoursStandby time: Approx. 80 hoursMusic time: Approx. 3 hoursTalking time: Approx. 4 hours Audio transmission format: HFP/A2DP/HSP/AVRCPEarphone-battery: Polymer Lithium-Battery 45mAhCharging-box-battery: Polymer Lithium-Battery 280mAhWorking voltage: 3.2-4.2VCharging voltage: DC5VFrequency: 2.4-2.48GigahertzHorn impedance: 32OHorn bandwidth: 20-20KHzHorn sensitivity: 105dBMicrophone sensitivity: -42+/-2db
- Comfortable to wear even for a long time.
- Let you enjoy the superior sound quality.
- Support binaural communication, deep noise reduction function.
- BT 5.0, faster and more stable.
- IPX4 waterproof and dustproof, single and double ears are free to wear.