1. Bluetooth version: 5.4 2. Material: PC + ABS 3. Standby time: about 90 days 4. Usage time: about 5 hours 5. Charging time: 1.5 hours 6. Battery capacity: 300mAh charging case/30mAh per ear x 2 7. Small and mini, easy to carry 8. Lightweight body, no sense of wearing, ergonomic design, no pressure on the ears when worn for a long time 9. HiFi-level sound quality, enjoy mobile games and entertainment audio and video for a better listening experience
