1. Introduction
Thank you for choosing the Retevis RB667 Walkie Talkie. This portable two-way radio is designed for reliable communication with 16 PMR446 channels, a rechargeable 1600mAh USB-C battery, LCD display, VOX, and group call functions. It is ideal for various activities such as hiking, camping, and general recreational or professional use. Please read this manual thoroughly before operating your device to ensure safe and optimal performance.
Image: Two Retevis RB667 walkie talkies and two earpieces, showcasing the product and its accessories.
2. Important Safety Information
BATTERY WARNING:
- KEEP OUT OF REACH OF CHILDREN.
- Swallowing can lead to chemical burns, perforation of soft tissue, and death.
- Severe burns can occur within 2 hours of ingestion.
- Seek medical attention immediately if swallowed.
Always handle batteries with care and dispose of them properly according to local regulations.
Image: A close-up of the product packaging showing a battery warning label, emphasizing safety precautions.
3. Package Contents
Upon opening your Retevis RB667 package, you should find the following items:
- 2x Retevis RB667 Walkie Talkie
- 2x 1600mAh Li-ion Battery
- 2x Back Clip
- 1x 2-in-1 USB C Charging Cable
- 2x Headset (Earpiece)
- 2x Lanyard
- 1x Multilingual User Manual
Image: A visual representation of all items included in the Retevis RB667 package, such as the radios, batteries, clips, cable, headsets, and lanyards.
4. Key Features
- PMR446 License-Free Operation: Communicate freely without the need for a license. The disabling of CTCSS/DCS allows for convenient communication even with different walkie-talkie models.
- Compact and Portable Design: Measuring only 134x48x22mm and weighing 120g, the RB667 is lightweight and easy to carry anywhere.
- Long Use Time: Equipped with a 1600mAh large capacity battery, providing approximately 11 hours of working time and 30 hours of standby time.
- USB-C Charging: Conveniently recharge both walkie talkies simultaneously using the included USB-C cable, improving charging efficiency.
- One Key Group Call: Initiate a group call to all connected users with a single button press, useful for emergencies or broadcasting messages.
- VOX Hands-Free Operation: Communicate without pressing the PTT (Push-To-Talk) key, allowing for hands-free use, especially when paired with the professional earpieces for clear sound quality.
- 1.44-inch LCD Display: Easily view the status and operations of your walkie talkie, including channel, battery level, and feature indicators.
- 10 Call Tones: Choose from 10 different call tones to alert others before communication.
- Key Lock Function: Prevents accidental channel changes or operations.
Image: The compact and portable design of the Retevis RB667, highlighting its small size and light weight.
Image: The Retevis RB667 highlighting its long battery life and convenient USB-C charging capability.
Image: The Retevis RB667 illustrating the feature of disabling CTCSS/DCS for broader compatibility.
Image: The Retevis RB667 demonstrating its one-key group call function for easy communication with multiple users.
Image: The Retevis RB667 showcasing its VOX hands-free operation feature, ideal for busy users.
Image: The 1.44-inch LCD display of the Retevis RB667, showing indicators for call tone and key lock functions.
5. Setup Guide
5.1 Battery Installation
- Ensure the walkie talkie is powered off.
- Locate the battery compartment on the back of the unit.
- Align the 1600mAh Li-ion battery with the contacts inside the compartment.
- Gently push the battery into place until it clicks securely.
- Replace the battery cover.
5.2 Charging the Battery
Before first use, fully charge the walkie talkies. The RB667 supports USB-C charging.
- Connect the included 2-in-1 USB-C charging cable to the USB-C port on each walkie talkie.
- Plug the USB-A end of the cable into a compatible USB power source (e.g., USB adapter, PC, power bank).
- The charging indicator on the walkie talkie will show the charging status. Refer to the LCD display for battery level.
- Once fully charged, disconnect the charging cable.
6. Operating Instructions
6.1 Power On/Off
To power on or off the walkie talkie, press and hold the power button located on the side or top of the unit until the LCD screen illuminates or turns off.
6.2 Channel Selection
The RB667 has 16 PMR446 channels. Use the Up/Down arrow buttons on the front panel to select your desired channel. Ensure all radios in your group are on the same channel for communication.
6.3 Transmitting and Receiving
- To Transmit: Press and hold the PTT (Push-To-Talk) button on the side of the walkie talkie. Speak clearly into the microphone. Release the PTT button when finished speaking.
- To Receive: Ensure the PTT button is not pressed. The radio will automatically receive signals on the selected channel.
6.4 VOX (Voice Operated Exchange) Function
The VOX function allows for hands-free transmission. When enabled, the radio will automatically transmit when it detects your voice, eliminating the need to press the PTT button.
- To enable/disable VOX, refer to the user manual's specific menu navigation or button combination.
- Adjust VOX sensitivity as needed to prevent accidental transmissions or missed voice activations.
6.5 One Key Group Call
The 'Group' button on the front panel allows for a quick group call. Pressing this button will broadcast your message to all radios configured for group call, even if they are not on the same channel as your current selection.
6.6 Key Lock Function
To prevent accidental changes to settings or channels, activate the key lock function. This typically involves pressing and holding a specific button (e.g., 'Menu/Lock') for a few seconds until a lock icon appears on the LCD display. Repeat the process to unlock.
6.7 Call Tones
The RB667 offers 10 different call tones. These tones can be used to alert other users before initiating a conversation. Refer to the menu settings to select your preferred call tone.
7. Maintenance and Care
- Cleaning: Use a soft, damp cloth to clean the exterior of the walkie talkie. Do not use harsh chemicals or abrasive cleaners.
- Battery Care: To prolong battery life, avoid overcharging or completely draining the battery. Store the walkie talkie and batteries in a cool, dry place when not in use for extended periods.
- Storage: Keep the device away from extreme temperatures, direct sunlight, and moisture.
- Avoid Drops: While durable, avoid dropping the walkie talkie to prevent internal damage.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Battery is low or not installed correctly. | Charge the battery fully. Reinstall the battery, ensuring proper contact. |
| Cannot transmit or receive | Incorrect channel selected; out of range; battery low. | Ensure all radios are on the same channel. Move closer to the other radio. Charge the battery. |
| Poor audio quality | Volume too low/high; microphone/speaker obstructed; interference. | Adjust volume. Clear any obstructions. Move away from sources of interference. |
| Keypad unresponsive | Key lock function is active. | Deactivate the key lock function (refer to section 6.6). |
9. Specifications
| Feature | Detail |
|---|---|
| Model Number | RB667 |
| Brand | Retevis |
| Product Dimensions | 13.8 x 4.8 x 2.2 cm (5.43 x 1.89 x 0.87 inches) |
| Weight | 120 g (0.26 lbs) |
| Battery Type | 1 Lithium Ion battery (included) |
| Battery Capacity | 1600mAh |
| Channels | 16 PMR446 Channels |
| Connectivity Technology | USB-C |
| Special Features | Lightweight, Keypad Lock, One key group call, Disabling CTCSS/DCS, Rechargeable |
| Color | Black |
| Manufacturer | Retevis |
10. Warranty and Support
For warranty information and customer support, please refer to the specific warranty card included with your product or visit the official Retevis website. Retevis is committed to providing quality products and services.
If you encounter any issues not covered in this manual, please contact Retevis customer service for assistance.
