Product specifications:
1. Bluetooth version: V5.0.
2. Charging time: 1.5 hours.
3. Headphone power: 40mAh.
4. Charge box power: 500mAh.
5. Call duration: 2 hours.
6. Music playback: 2 hours.
7. Standby time: 120 hours.
8. Transmission distance: 10m for unobstructed transmission.
9. Function description: call answering music play/pause stereo voice prompt power display.