ROCK EB71 TWS Bluetooth 5.0 IPX4 Waterproof Wireless Stereo Bluetooth Earphone(Black)

1. TWS technology frees your ears and the music. 2. Bluetooth version 5.0. 3. Acoustic technology, HiFi speaker and digital signal processor(DSP) deliver powerful lows, giving excellent music and calling experience. 4. IPX4 sport waterproof effectively prevents the damage caused by rain or sweat. 5. Built-in smart induction chip provides full touch-control operation. 6. Soft silicone and lightweight, comfortable to wear. 7. Earphone battery capacity: 100mAh. 8. Charging box battery capacity: 400mAh. 9. Bluetooth transmission distance: 10m. 10. Music time: about 4 hours. 11. Standby time: about 150 hours. 12. Charging time: about 1 hours. 13. Material: ABS. 14. Earphone size: 44x20x22mm.