1.Bluetooth version:5.22.Support protocol:A2DP/HFP/SPP/HID/PBAP3.Bluetooth range:greater than equal 10m4.Battery capacity:230mA5.Charging time:About 1h6.Standby time:200h7.Call time:About 10 h8.Music playing time:About 15h(volume)9.Speaker size:13mm10.Frequency:20Hz-20,000Hz11.Impedance:16ohm12.Sensitivity:103±3dB13.Charging specification:5V1A14.Operating voltage:3.7VColour:black/White/pink/greenMaterial:ABSPackage Contents:1 x Wireless Bluetooth Earphone1 x USB charging cable1 x English manualOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.