Description:Comfortable: This wireless earphone delivers a good touch feeling and is suitable for all kinds of people.Suitable occasions: This bluetooth-compatible headphone is a nice choice to wear during sports, fitness, traveling, hiking, working, and so on.Good performance: This wireless headphone is designed with a large speaker that can deliver clear and loud sound.Hand-free call: This wireless earphone is designed with a noise cancelling microphone, so it can deliver clear call.Long use time: This wireless earphone comes with a charging case that can display power level and also can dramatically improve the work time.Specification:Size(LxWxH): Earphone: Approx. 38x55x16mm/1.49x2.17x0.63 inch, charging case: Approx. 97x58x31mm/3.82x2.28x1.22 inch.Bluetooth-compatible version: 5.1.Support protocol: HFP,HSP,A2DP,AVRCP.Range: Approx. 10m/32.81ft.Call time: About 12h.Music play time: About 15h.Standby time: 300h.Battery: Polymer li-battery.Voltage: 3.7V.Battery capacity: Earphone: 70mAh(Built-in), charging box: 600mAh(Built-in).Charging time: Earphone: 1h.Speaker: 16mm.Impedance: 16Ω.Frequency: 20-20KHZ.Waterproof: IPX5.Earphone color: Black, white, orange, green.Charging box color: Black.Note:There might be a bit of color distortions due to different computer resolutions.There might be a slight error due to different hand measurements.Package Includes:1 Piece Earphone(with 1 Piece Charging Box, 1 Piece User Manual).