1. Bluetooth version: 5.0 2. Charging time: about 2.5 hours 3. Talking/playing music duration: about 5 hours 4. Working standby time: about 100 hours 5. Shutdown battery life: about 6 hours 6. Battery capacity: 90mAh lithium battery 7. Shark fin design, comfortable to wear 8. Magnetic design, automatic adsorption