Product name: True wireless earbudsConnectivity: Bluetooth 5.1Wireless range: up to 10mAudio codec: AAC, SBCInput: DC5V/1ABattery capacity of charging box: 300mAhBattery capacity of headset: 40mAh(each earbud)Play time: about 4-5 hrs(charged once)Charging time for charging box: about 1.5 hourCharging ways for charging box: USB-C charging or wireless charging Water Resistant Earbuds IPX5 rated waterproof for daily use, no worrying about sweat or rainy daysFor better performance, please clean and dry the charging connect of earbuds soon after wetted Long Battery Life Earbud: 40mAh, play up to 5 hoursCharging box: 300mAh, extendable 25 hours, total 30 hours battery life with charging box(5h+25h) Earbuds Lightweight and Portable Ergonomic earbuds: No discomfort for long time wearingCute charging case: Easy to put in your pocket Multiple Playing Mode Binaural mode: immerse yourself in musicMono mode: for safety driving, meeting, workoutSharing mode: sharing with friend or family