1. Bluetooth version 5.0, Jerry solution 2. LED digital display, fast charging 3. TWS binaural mode, automatic matching and interconnection 4. Charging compartment battery: 500mAh/3.7V, earplug battery: 45mAh/3.7V 5. 4 hours of talk time, 3.5 hours of music playback, 2 hours of charging time, 300 hours of standby time 6. 10 meters transmission distance, portable storage, not easy to lose
