User's Guide

U3 USER GUIDE
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 Low temperature
b. Low Voltage:
When the battery voltage is too low to:
 Perform a transmission
 Use the radio
12.4 USING BLUETOOTH FUNCTION
You can use Unication Bluetooth accessories including ear piece and PTT button with your U3
radios. You need to pair your Bluetooth accessories with your radio before using.
12.4.1 Turning on Bluetooth function
1. Please go to Status indication ON/OFF menu by main menu
or function status button to turn on the function.
2. Use 4-way Navigator button ▲▼ to select “Bluetooth.”
3. Press right soft button “Change” to enter next menu.
4. The radio will automatically search available Bluetooth
accessories, if this is your first time to use Bluetooth function, it
will take more time to enter available Bluetooth devices list.
5. Please press left soft button to connect to a device, or press
right soft button “Refresh” to refresh the Bluetooth devices list.
12.4.2 Pairing on Bluetooth device
1. Use 4-way Navigator button ▲▼ to select a device and press left
soft button to connect.
2. You’ll need to wait until the radio is connected, once connected,
the radio will show a successful prompt shortly. If the radio failed to
connect to other devices, please try again or select another