EN 53 Get startedCharge the battery Before you use your headphones, place themin the charging box and charge the battery for2 hours for optimum battery capacity andlifetime. Use only the original USB-C charging cable toavoid any damage. Finish your call before charging. Connectingthe earpieces to charge will power them off.NoteHow to wearSelect suitable ear tips for optimum fitA tight, secure fit will provide the bestsound quality and noise-cancellation.12Test which ear tip provides you withthe best sound and wearingcomfort.3 sizes of replaceable ear tip coversare provided: large, medium andsmall.L M SEarpiece• The earpieces start charging and theblue LED light goes on• When the earpieces are fullycharged, the blue light will go offTake out the earpieces and remove theinsulation labels.Put the earpieces back into thecharging box and close the lid. Normally, a full charge takes 2 hours (for theearpieces or charging box) by USB cable.TipCharging BoxPlug one end of the USB-C cable intothe charging box and the other end intothe power source. The charging box serves as a portable backupbattery for charging the earpieces. When thecharging box is fully charged, it will fullyrecharge the earpieces 3 times.Tip