Original Xiaomi Bluetooth 5.3 Open-Ear Wireless Bluetooth Earbuds Specifications 1. Bluetooth version: BT5.3 2. Bluetooth codec: AAC SBC LHDC (supported by some models) 3. Working distance: 10m (barrier-free open environment) 4. Protection level: IP54 (headphones) 5. Frequency response range: 20Hz-40kHz 6. Single ear size: 54.24 x 39.3 x 13.79mm 7. Single ear weight: 9.6g 8. Charging box size: 105.8 x 55.4 x 26.1mm 9. Charging box weight: 68.78g 10. Overall machine weight: 88g 11. Battery capacity: earphones: 60mAh, charging box: 780mAh 12. Charging port: Type-C 13. Headphone input: 5V 130mA 14. Charging box input: 5V 1A 15. Charging box output: 5V 260mA 16. Single battery life: 7.5 hours 17. Battery life with charging box: 38.5 hours Features 1. Made of skin-friendly liquid silicone material, soft and comfortable to wear. 2. The earhook is embedded with flexible nickel-titanium alloy wire, which can still fit well after being worn many times, is not easy to fall off, and has long-term stable performance. 3. Using DLC diaphragm, the sound performance is precise and moving, the treble is rich in detail, the midrange is mellow and full, the bass is powerful and graceful, and the sound is beautiful and captivating. 4. Intelligent AI call noise reduction, dual-microphone array structure, and beamforming algorithm can accurately pick up voice content, reduce environmental noise, and present a clearer call effect. 5. The earphones alone have a battery life of up to 7.5 hours, and when used with the charging box, the battery life can reach 38.5 hours. Super long battery life, long-lasting listening. 6. IP54 dustproof and waterproof, you can enjoy music with peace of mind while exercising. Package List Pair of earbuds x 1 Charging box x 1 Type-C charging cable x 1 Manual x 1