1. Bluetooth version: 5.02. Material: aluminum alloy + ABS3. Battery capacity: headset 35mAh, charging compartment 350mAh4. Charging time: about 1.5 hours5. Standby time: 200 days6. Talk time: 4.5-5 hours7. Music time: 4.5-5 hours8. Bluetooth distance: 10 meters9. Wireless transmission, stable connection without delay10. Metal fashion appearance, mini size, easy to carry11. Support wireless charging function12. Ergonomic design, comfortable to wear

http://olla.gr/remax-tws-12-bluetooth-5.0-metal-true-wireless-bluetooth-stereo-music-earphone-with-charging-box-silver-remax/