How do I change the channel and unlock the keypad on the Radtel RT12 Walkie Talkies?

To change the channel on the Radtel RT12 Walkie Talkies, follow these steps:
1. Go to channel 16 on the walkie talkie.
2. Turn off the TV or any other electronic devices nearby.
3. Press and hold the PWR (power) button and the CH+ (channel up) button simultaneously until the display shows "English."
To unlock the keypad if the radio is stuck on a particular channel, follow these steps:
1. Press the third side button (Vol-) until you hear a long beep.
2. This will unlock the keypad and allow you to change channels freely.
Please refer to the user manual for more detailed instructions and illustrations.
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