1. 360-degree stereo surround panoramic sound effects, giving you an immersive experience 2. Intelligent active noise reduction, shielding the interference of environmental noise, providing clear sound quality 3. Bluetooth 5.3 chip, strong anti-interference, stable and fast audio transmission, no lag 4. High bit rate transmission speed, synchronous response of audio and video, making gaming more enjoyable 5. Material: PC+ABS 6. Chip: Jieli 7. Bluetooth version: BT 5.3 8. Headphone capacity: 25mAh x 2 9. Charging box capacity: 250mAh 10. Transmission distance: less than or equal to 10m 11. Usage time: about 4 hours 12. Working frequency: 2.402GGz-2.480GGz 13. Size: 53x37x21mm 14. Weight: 40g