Battery capacity: 30mAh The battery capacity of the charging case: 500mA Playtime: about 3.5H (70% volume) Talk time: about 3 H Standby time: About 30H Cycle counts: about 4 times Charging time of earphone: About 1.5H Charging time of charging case: About 2H Charging port:TypeC 【comfortable wear and Waterproof】 It can be used freely in any scene, whether it is raining or running. Not afraid of sweat and rainy days. You can enjoy your music while exercising. Using a fully-fitting design does not press your ears, will not make your ears tired all-day. Let you feel clear and comfortable. 【BT 5.0】 New upgrade Bluetooth 5.0 Wireless Earbuds. It can efficient transmission and not dropped. Convenience to take out and use and easy to operate. No need for cumbersome operations. 【HD call】 Use CVC intelligent noise reduction technology, filtering noise. Let you have high HD calls is like face to face in noisy environment weather in the party, workplace, office and etc. 【Automatic matching】 After the first pairing，connect automatically next time, bid farewell to tedious manual power-on pairing, and can be sensed within 10 meters. Both earphones are the main earphones and can be switched at any time. You don't need to connect again when switching left and right earphones. 【Battery life】 The earphone can be used for 3.5 hours with the first full charge, and earphones with the charging box can be used for a total of 14 hours. Standby time is 30hours. Enough for you to use for several days or even enough for you to use on a short trip. Paring operation: 1-open the charging case, the earphones will automatically turn on and paired with each earphone once take it from the charging case. Then the orange light and white light of the left earphone will start flashing alternately while the right earphone does not flicker if the pairing between the earphones is succeeded. 2-Turn on Bluetooth and search for Bluetooth device "JR-TL8". 3-Click the connection button. you can use the earphone to listen to music and make calls after connected. Noted: Connecting the earphones manually for the first time and next time it will connect to the last connected device automatically. Pairing operation: 1-Turn on: The earphone will turn on automatically after taking it from the charging case. Long press the multi-function button of the left/right earphone for 3 seconds to turn it on. 2-Turn off: (1)Turn off earphones by putting the earphones back in the charging case. (2)Manual shutdown: Long press the touch area of the left/right earphone simultaneously for 5 seconds to turn it off. (3)Auto power off if without connection in 10 minutes. 3-Answer/Hang-up: double click the touch area of left/right earphone 4-Reject: Long press the touch area for 1 second. 5-Play/pause: double-click the touch area of the left/right earphone. 6-Last song/next song: long-press the left/right ear for 1 second.