This video shows you how to change the spoken language setting of the Retevis RT22 without using the programming software. Here are the steps written out:
1. Turn on the radio and set it to channel 16
2. Turn off the radio
3. Press and hold the + button while turning the radio back on.
4. You will hear the “Power on – 16” message, but in Chinese.
Perform the steps again to change back to English.