User manual

Real Sound Technology. Real Original Sound Technology is jointly developed by
Dirac Research AB and OPPO. It delivers original sound in full fidelity and creates a
spatial three-dimensional sound arena to provide you with a listening experience
elect a
scene you want the sound to change to.
Headphones Monitor. When turned on, you can enjoy a live karaoke experience in
real-time through your headphones.
Turn off the default headphones monitor function in the karaoke app to avoid sound
problems.
5.14. Charge and monitor the battery
OPPO smartphones are equipped with a non-removable, lithium-ion rechargeable
battery. Do not attempt to open your phone. Charge the phone using the cable and
USB power adapter
Charge the battery. Connect your phone to a standard power outlet or a Power
Bank.