Yesido TWS18 Bluetooth 5.1 True Wireless Stereo Wireless Bluetooth Earphone

1. Material: PC + ABS environmentally friendly material 2. Chip: JL6983 3. Bluetooth version: 5.1 4. Transmission range: barrier-free 10m 5. Speaker: 13mm / 32 ohm 6. Charging voltage: 5V-500MA 7. Headphones/charging compartment charging time: 1.5H 8. Battery: 25mAh + protective board 9. Charging compartment: 220mAh + protective board 10. Talk time: about 3.5H 11. Music playback time: 4H (70% volume) 12. Continuous working time: 12H 13. Compact size, comes with lanyard, easy to carry 14. Semi-in-ear design, ergonomic design, no pressure on the ears when worn