Bluetooth 5.0, lower power consumption, more stable signal, excellent bluetooth compatibility, compatible with all the smartphones, tablet pc, etc.Automatic pair, automatic power on/off, when take out the headsets from charger box, the two headsets will turn on automatically and pair with each other automatically.Touch control, just a finger touch can acheive multi functions, including: play & pause, answer & reject phone call, call back, play next song.Each earbuds built in 50mAh battery, music playback time up to 4 hours. the charger box built in 300mAh battery, can charge the earbuds for about 6 times, super long standby time.IPX6 waterproof and sweatproof design, you can wear it when raining, can wear it when take a shower, but not put it into hot water.Built in microphone, can answer phone call and chat.Ergonomic design, super mini, ultra lightweight, can fit to ears very comfortablely, no pressure to ears at all.Type: Wireless EarphonesBluetooth Version: bluetooth-compatible 5.0Operate Distance: About 10 MetersBluetooth Protocol: HFP, A2DP, HSP, AVCRPFrequency Range: 20-20000HzSensitivity: 105dBMic Sensitivity: -42dBImpedance: 32 EarbudsBattery Capacity: 50mAh (Included)Playback Time: About 4 HoursCharger Box Battery Capacity: 300mAh (Included)Features: Touch Control, Automatic Pair, Waterproof, PortableEarphone Size: 20mm x 17mm x 14mm/0.79" x 0.67" x 0.55" (Approx.)Charger Box Size: 70mm x 38mm/2.76" x 1.50" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 Pair of Wireless Earphones1 x Charging Box1 x Data Cable1 x User Manual