Colour:black Material:abs How To Use It? Power On/Off Long press the MFB for two sec to strength on, the Red/Blue Indicator will flash 1 sec. Long press the MFB for 5 sec to energy on, the Red Indicator will flash 1 sec. Bluetooth Pairing After powered on, it is going to Bluetooth Pairing mode autaomatically, then function your Bluetooth headphoens or earphones inside 1 meter to pair. Bluetooth Disconnection After Bluetooth Paired, lengthy press the MFB for two moment to disconnect the current Bluetooth Headphones or earphones to enter Bluetooth Pairing Mode. Play Pause Short Press the MFB to pause, press again to play. Clear Bluetooth History After Powered off, lengthy press the MFB about 8 sec to clear Bluetooth paired history, Red/Blue Indicator flash 1 sec to enter Bluetooth Pairing Mode. Package Contents: 1 x audio conversion adapter Only the above package content, other merchandise will not be included. Note: Light reflection and diverse reveals may cause the color of the item in the photograph a little bit diverse from the genuine thing. The measurement allowed error is +/- 1-3cm.