Retevis RT22 Walkie Talkie

What is the battery life and charging time for the RT22?

The Retevis RT22 has a battery life of up to 12 hours depending on usage, with a 3.7V 800mAh Li-ion rechargeable battery. Charging time is approximately 2–3 hours using the included USB cable and adapter.

How do I turn on the Retevis RT22 walkie talkie and adjust the volume?

Rotate the Power/Volume knob clockwise until you hear a click to turn the radio on. Continue rotating the knob clockwise to increase the volume or counter-clockwise to decrease it. The radio will power off when you rotate the knob counter-clockwise until it clicks off.

How do I install and charge the battery in the RT22?

Ensure the radio is off, then slide the battery compartment cover downwards and align the Li-ion battery with the contacts inside. Press the battery in until it clicks and replace the cover by sliding it upwards. To charge, connect the USB cable to the radio and a USB adapter plugged into a wall outlet; the indicator light will show red during charging and turn green when fully charged.

How do I enable the VOX (voice-activated transmission) function on the RT22?

Adjust the radio to channel 7, turn off the VOX function, and then press the Channel + (CH+) key to turn it on. You will hear 'VOX ON' or 'VOX OFF' as confirmation that the function has been activated.

How do I lock and unlock the keypad on the RT22?

In standby mode, press the Channel + (CH+) and Channel - (CH-) buttons simultaneously to lock the keypad; you will hear a beep to indicate it is locked. Repeat the same operation to unlock the keypad.

What should I do if my RT22 cannot transmit or receive?

Verify that all radios are set to the same channel, move closer to other radios, and ensure the battery is fully charged. Poor transmission or reception can also result from channel mismatch or low battery power.