Bluetooth Earphones HD Stereo Wireless Headphones waterproof IPX4 3D Stereo

1. Model: TWS4.2. Working time: Using one earbud:4-5 hours; Using both earbud:3-4Hours.3. Standby time: About 100Hours if one earbud on,60 hours if both earbuds on.4. Charging time: about 1.5 hours ( from 0%-100%).5. Headset battery capacity: About 50mAh+50mAh.6. Charger Box Capacity: About 500mAh.7. Working range: About 10m.8. Bluetooth version: V5.09. Compatible mobile phones: Headphones are compatible with Android, IOS, Microsoft, etc., 100% of mobile phones with Bluetooth.10. Support incoming call number,ISO sytem power display.11. Waterproof: IPX4.12. Auto power on and Auto pairing