1. Bluetooth version: dual-mode Bluetooth v+5.0+EDR, ultra-low power consumption; 2. Support protocol: A2DP/HEP/HSP/AVRCP/ etc.; 3. Voice control, call function, support for music, NFC function, multi-point Connection; 4. Wearing method: In-ear type; 5. Bluetooth transmission distance: more than 10 meters; 6. Charging time: about 1 hour; 7. Standby time: about 60 hours; 8. Battery capacity: 45mAH built-in special customization for left and right ears Rechargeable polymer lithium battery, the battery capacity of the rechargeable compartment is 400mAH; 9. Chip: Zhongke Lanxun 5616A; 10. Talking and playing time: about 6 hours; 11. Features: physical noise reduction, automatic pairing when opening the lid, touch control , Double moving coil