Single Earbuds: Please turn on the earbud, connect the related Bluetooth at your phone. If you have R and L earbuds, but still want to use only one headset: Please make sure the other one of the headphones have been turn off.<br><br> If you have R and L earbuds, please reset the two earbuds before enjoy the both earbuds at a same time. There are 3 steps for the reset steps: <br> <br> --1-- Before reset, please delete the ALL TOZO Bluetooth records at your phone (include [TOZO-T10-L] and [TOZO-T10-R]) , then turn off the Bluetooth at your phone.<br> <br> --2-- The two earbuds have to reset at a same time. Make sure both two earbuds have been turn off, then press both earbud`s button at a same time and hold for 15 Seconds until purple light flash twice, reset done.) <br> <br> --3--After reset done, please press both two earbuds for 3 seconds to turn on both earbuds, then you can turn on your phones Bluetooth and connect the new [TOZO-T10-R] at your phone again.<br> <br> Note: If the phone claim”Connection Unsuccessful”, please deleted all related Bluetooth records on your phone, then click to research and connect it again.