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

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: 199×159.85×77.35mm16. Weight: 217g