REMAX RB-620HB Bluetooth 5.0 Metal Wireless Bluetooth Headset(Blue)

1. Bluetooth version: 5.02. Material: plastic + metal3. Battery capacity: 300mAh4. Charging time: 2-3H5. Talking time: 18H6. Music playing time: 18H7. Standby time: 300H8. Speaker impedance: 32 ohms9. Speaker power: 10mW10. 40MM drive unit strong bass effect11. Retractable head beam adapt to various head shapes comfortable and stable to wear12. High-recognition button control simple operation13. Rotation design self-adaptive adjustment of rotation can rotate and lay flat easy to carry14. High imitation protein lint soft skin-friendly and comfortable making listening to songs more comfortable15. Size: 199x159.85x77.35mm16. Weight: 217g