1. Introduction
The Retevis RB26 is a robust GMRS two-way radio designed for reliable long-range communication. This manual provides essential information for the safe and efficient operation of your RB26 radio. Please read it thoroughly before use.
2. Product Features
- Long Range Communication: Features 30 GMRS channels with higher authorized power for extended communication distances.
- Extended Battery Life: Powered by a large 2000mAh battery, offering up to 21 hours of use, with convenient USB-C charging.
- Durable Construction: Built with a rugged body, drop-tested from 2 meters, ensuring long-term reliability in demanding environments.
- Earpiece Kit: Includes K-Head 2-Pin earpieces with a 360° rotating clip and large PTT button, featuring VOX function for hands-free operation.
- Integrated Flashlight: A bright 10mm large diameter flashlight is available for illumination and emergency use.
- Repeater Capable: Supports GMRS repeater connectivity to overcome geographical limitations and significantly extend communication range.
3. Package Contents
Ensure all items are present upon unpacking:
- Retevis RB26 Two-Way Radio (quantity as purchased)
- Rechargeable Lithium-Ion Battery (2000mAh)
- USB-C Charging Cable
- Belt Clip
- K-Head 2-Pin Earpiece(s)
- User Manual
4. Controls and Functions

Figure 1: Front view of the Retevis RB26 radio, showing the speaker and microphone area.

Figure 2: Side view of the Retevis RB26 radio, highlighting the Push-To-Talk (PTT) button and channel selection buttons.

Figure 3: Back view of the Retevis RB26 radio, showing the removable belt clip and battery contacts.
- Power/Volume Knob: Rotate clockwise to power on and increase volume. Rotate counter-clockwise to decrease volume and power off.
- Channel Selector Buttons: Use the up/down buttons on the side to cycle through the available channels. The radio provides voice prompts for channel numbers.
- Push-To-Talk (PTT) Button: Press and hold to transmit your voice. Release to listen.
- Side Button 2 (Flashlight): Long press this button to turn the integrated flashlight on or off.
- USB-C Port: Located on the side, used for charging the radio.
- Earpiece/Accessory Jack: Standard K-Head 2-Pin jack for connecting earpieces or other audio accessories.
Video: Demonstrates the basic operation of the Retevis RB26, including power, volume, and channel selection.
5. Setup
5.1 Charging the Battery
Before first use, fully charge the radio's battery. Connect the provided USB-C cable to the radio's USB-C port and a compatible USB power adapter. The charging indicator will show the charging status.

Figure 4: The 2000mAh Lithium-Ion battery for the Retevis RB26 radio.
5.2 Attaching the Belt Clip
Align the belt clip with the screw holes on the back of the radio and secure it with the provided screws.
5.3 Attaching the Earpiece
Insert the K-Head 2-Pin earpiece connector into the accessory jack on the side of the radio. Ensure it is firmly seated.
6. Operating Instructions
6.1 Power On/Off and Volume Adjustment
Rotate the Power/Volume knob clockwise until you hear a click to turn the radio on. Continue rotating clockwise to increase the volume. Rotate counter-clockwise to decrease the volume and turn the radio off.
6.2 Channel Selection
Use the up/down channel selector buttons on the side of the radio to choose your desired channel. The radio will announce the channel number.
6.3 Transmitting and Receiving
To transmit, press and hold the PTT button. Speak clearly into the microphone. Release the PTT button to stop transmitting and listen for a response.
6.4 VOX Function (Hands-Free Operation)
The RB26 supports VOX (Voice Operated Exchange) for hands-free communication when using a compatible earpiece. Refer to the full user manual for detailed activation and sensitivity settings.
6.5 Flashlight Operation
Long press Side Button 2 to activate the integrated flashlight. Long press again to turn it off.

Figure 5: The RB26 radio with its powerful 10mm flashlight in use.
7. Maintenance
7.1 Battery Care
To maximize battery life, fully charge the battery before each use and avoid completely draining it. Store the radio and battery in a cool, dry place when not in use for extended periods.
7.2 Cleaning
Wipe the radio's exterior with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners. Ensure the USB-C port and accessory jack are free of dust and debris.
7.3 Durability
The RB26 is designed to be rugged and has been drop-tested from 2 meters. However, excessive force or repeated drops may cause damage.
Video: Demonstrates the durability of the RB26 radio through a drop test.
8. Troubleshooting
- Radio does not power on: Ensure the battery is fully charged and properly installed. Rotate the Power/Volume knob clockwise until it clicks.
- Cannot transmit or receive: Verify that both radios are on the same channel. Check if the PTT button is being pressed correctly. Ensure you are within the effective communication range.
- Poor audio quality or static: Adjust the squelch level (if programmable via software). Ensure there are no major obstructions between radios. Move to a higher location if possible.
- Limited range: Obstacles like buildings, hills, and dense foliage can reduce range. For extended range, utilize GMRS repeaters if available in your area.
Video: Explains factors affecting radio range and how to optimize distance for the Retevis RB26 GMRS radio.
9. Specifications
| Feature | Specification |
|---|---|
| Model Number | RB26 |
| Item Weight | 3.53 ounces |
| Product Dimensions | 7.3 x 2.4 x 1.1 inches (4.17"D x 2.4"W x 1.34"H) |
| Batteries | 1 Lithium Ion battery required (included) |
| Number of Channels | 30 |
| Frequency Range | GMRS |
| Talking Range Maximum (Direct) | 1.5 Mile (can be extended with repeater) |
| Voltage | 3.7 Volts (DC) |
| Water Resistance Level | Water Resistant |
| Special Features | 3W High Power, 2000mAh Battery, USB-C Charging, Flashlight, GMRS Repeater Capable, Portable design with Belt Clip, Walkie Talkies with Earpiece |

Figure 6: Dimensions of the Retevis RB26 radio.
10. Warranty and Support
Retevis provides a 2-year warranty for the radio body and a 1-year warranty for accessories. A 30-day no-reason return policy is also available. For any support inquiries or warranty claims, please contact Retevis via Amazon email. They aim to reply within 12 hours.







