1. Using Bluetooth 5.2 version, 140mAh battery. 2. Built-in 5C battery, it can be fully charged in 20 minutes. 3. It can continuously listen to songs and talk for more than 20 hours, with long battery life. 4. Compatible with Apple/Android, can connect 2 mobile phones at the same time. 5. Vibration reminder function for incoming calls, one-key operation, intelligent answering.
