1. Bluetooth version: V5.3 2. Bluetooth distance: 10m 3. Audio frequency: 20Hz-20K Hz 4. Headphone battery capacity: 40mAh x 2 5. Charging box battery capacity: 400mAh 6. Headphone charging time: about 1h 7. Playing time: about 7.5h 8. Standby time: about 300 days 9. In-ear wearing design, ergonomic, comfortable and stable, not easy to fall 10. IPX4 waterproof structure, nano coating process, no fear of sweat erosion 11. Game/music dual-mode sound effects, giving you a different immersive listening experience 12. Using ENC call noise reduction technology to eliminate environmental noise and convey human voice clearly and accurately
