1. Bluetooth version: 5.1; noise reduction version: CVC8.0 2. Battery capacity: 2000mAh for charging compartment; 50mAh for left and right ears 3. Talk/music time: 3 hours; standby time: 200 hours 4. Input current of charging compartment: 5V 1A 5. Fits the human body, not easy to fall during exercise 6. Automatic matching, independent dual channel 7. The wireless connection is not stuck, and the three-screen digital display can see the power 8. Smart touch, high-definition call, IPX7 waterproof life 9. Portable power bank, can charge mobile phones
