Product Details Wireless Earbuds Parameter: Bluetooth: V5.0Transmission Range: 10m (free space) Earplug weight(each): 5g Charging box: 500mAh, 65g Frequency reponse: 20HZ-16kHz S/N: 95dB(A-weigh) {url removed} Battery capacity: Earplus weight (each) 55mAh Battery charging time: Earphone 90 minutes, Charging box 3 hours Battery use time: About 2-3 hours of music time Support audio codec: A2DP/AVRCP/HFP/HSP Bluetooth earbuds Features: 1.Real wireless Earplug, get rid of all wired control, smart connections or using separately 2.High defination isolation and noise reduction, piston type, noise cancelling. 3.The rechargeble house can be supplied to two earphones for 5 cycle recharge 4.Earphones are full of eletricity, which can support up to 2-3 hours of telephone or music playback time. 5.Pure high quality sound for compatible devices by equipping with bluetooth 5.0 chip and stable bluetooth signal. 6.You can play any audio files of the paired bluetooth device. 7.Built-in microphone hands-free phone 8.Waterproof, antiperspirant 9.Comfortabie and lightweight in ear design. 10.The Earplug charge with light ice blue color, but the color of the headset have little difference, it is normal phenomenon, please don’t worry. 11.Our earphone have paired by us, so you don’t need to paring them agian. Please charging them fully after received our S7 earphone at first. Package Included: 1 x user manual 1 x charging box 1 pair x bluetooth headsets 3 pairs x replacement silica gel 1 x micro USB charging cable 1 x retail package case {url removed}