1) Remove both the earbuds from the charging cradle. * when removed from the charging cradle, they automatically turn on and enter pairing mode. 2) Turn on Bluetooth function in Settings > Bluetooth 3) Tap CR5 Bluetooth R detected in Available Devices/Other Devices to complete the connecting * When both earphones are removed simultaneously from the charging cradle, they will automatically turn on, connect to each other, and enter pairing mode * To pair the earphones manually, please press and hold the button for 7 seconds while the power is off.   When you remove the units from the charging cradle and press and hold the button for 5 seconds, they turn off. * In the case of the earphones failing to connect automatically after pairing, please tap CR5 in Paired Device/My Device. * In Dual Mode, L unit connects to your smartphone   When using Dual Mode, the sound can be heard from both left and right earphones during calls.   In Single Mode, each earphone will output sound with both microphones enabled for use.