Specifications:Support for listening to music and receiving calls.Listening to music can be adjusted to next and previous song, has volume up and down button press.Can connect two phones at the same time.Type: bluetooth-compatible HeadphoneBluetooth Version: 4.1Material: PlasticTalking Time: about 6 HoursStandby Time: up to 190 HoursSupport Systems: for iOS, for AndroidCompatible: Most bluetooth-compatible Enabled Cell Phone, TabletFeatures: Hands-free, Wireless, Stereo, Chinese/English Voice Prompt, Battery Display(for iOS), Caller ID Broadcast, Remote CameraDimension: 43mm x 14mm x 9.9mm/1.69" x 0.55" x 0.39" (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 x bluetooth-compatible Headphone1 x Hook