Model Number: R-03 Pro.Vocalism Principle: Hybrid technology.Volume Control: YesControl Button: No.Style: In-ear.Communication: Wireless.Use: Portable Media Player, Mobile Phone, Aviation, COMPUTER, Dj, Gaming, Sports, Travel, For Internet Bar, HiFi.HeadphoneFunction: Waterproof, Noise Cancelling, Microphone, Wireless Charging

Waterproof Standard: IPX-5.Active Noise-Cancellation: Yes.Type: In-Ear Headset.Usage: Mp3/cellphone /music.Playing time: 6~10h

Impedance: 32 Ohm.Sensitivity: 102 +3db

Frequency response: 20-20000Hz