Retevis RT78 Mode D'emploi page 7

Open the mobile app, click on the [Power] section and turn it to gray to turn off the car
radio. The next time you need to turn it on, open the app and the [Power] part will light up
and you can use it normally.
Eighth: How to turn off/on the signaling tone?
Long press the avatar to enter the following interface:
Click [Identification Information] to enable/disable signaling, such as [Location] On,
Signaling Sound Position Signal
Nineth: How to turn on voice relay?
Open the APP, select the RT78 interface, open the settings interface
Settings], click [Voice Relay] to implement the voice relay function (this function does not
depend on the network)
RF ENERGY EXPOSURE AND PRODUCT SAFETY GUIDE FOR PORTABLE TWO-WAY
ATTENTION!
Before using this radio, read this guide which contains important
operating instructions for safe usage and RF energy awareness and
control for compliance with applicable standards and regulations.
RADIOS
6
, select [General