60H Playback and LED Digital DisplaySingle wireless earbuds can be use 10Hrs, up to 60Hrs of listening time with 5 additional charges from 650mAh battery capacity charging case. Charging case with a clear digital display, as well as the left and right sides with the earphones power display, each grid represents 25% of the power. During charging and connected, the LED light will flash.High-fidelity Audio and Built-in MIC : True wireless stereo headphones use a 13.4mm graphene diaphragm, which sufficiently strong bass and naturally connects to the mid and high frequencies. Built-in high quality MIC,allowing you to fully enjoy crystal clear calls.Bluetooth 5.3 and One Step Auto Connect : With advanced bluetooth headphones 5.3 technology, you can get a 2X fast transfer speed (75% higher than the previous generation) and a more stable connection, almost no delay. Open the lid of the charging case, the bluetooth earbuds can be automatically connected to the previous paired device, Put back the charging case, the earphones will automatically disconnect.IPX7 Waterproof and a button Control: This waterproof earbuds has IPX7 waterproof and rigid seam design, easily resists movement or all-weather conditions in rain and sweat. Music and phone calls are easily controlled via the multifunction buttons on wireless headphones. Simple button control, very convenient to play/pause music, change songs, volume +/-, activate Siri, answer/hang up/reject incoming calls, while also preventing accidental touches.