►Product Specification: - Charging Time: 2-2.5 hours -Devices continuous working time: >15Hours -Power/Handfree/Stop/Play -Vol Up/Next - Vol Down/previous ►Product Characteristic: - Support bluetooth communication and bluetooth Music -Low loss high quality stereo sound -In build lithium ion battery with micro USB charging function -User-friendly function design -LED display for working status -No beeps ►How to Use? - Close all your Bluetooth on the phone. -Long press the "on/off" button in the eyemask to redue light flash. -Open your Bluetooth on the phone, find the Bluetooth name BT-FAAH, then connect. -After connecting the Bluetooth, you can listen to the music directly! ► Hands-free: - Incoming call, press once PLAY/STOP Button for auto receives call -Incoming call, press and hold PLAY/STOP button for 3 sec to reject call -During call, long press PLAY/STOP Button for 3 sec to switch to mobile device,press.PLAY /STOP Button again for 3 sec will switch back to earphone ►Notes: -Can be washable when take out the bluetooth module -Both speakers are not fixed,can adjust placement accordingly based on your size -Please check USB cable if can't work to charge -Please adjust the volume from your mobile or Long press Vol+ from Bluetooth if you can't hear any music -The sound may have a bit noise if there's environmental interference -Hope you like our product,please let us know if have any question or concern and share your smart thought if any need to be improved