Introduction
Thank you for choosing Topsung K-12 FRS Walkie Talkies. This manual provides essential information for the safe and efficient use of your new two-way radios. These rechargeable, long-range walkie talkies are designed for reliable communication in various environments, featuring NOAA weather alerts, hands-free iVOX operation, and a durable design. Please read this manual thoroughly before operation and retain it for future reference.
What's in the Box
- 4 * American Multi-purpose Walkie Talkies
- 4 * Detachable Lanyards & Belt Clips
- 2 * Multi-port USB Charging Cables
- 4 * 4500mAh Rechargeable Batteries (pre-installed or separate)
- 1 * User Manual & 3 Year Manufacturer Service Information
Product Overview
Familiarize yourself with the components and controls of your Topsung K-12 Walkie Talkie:

- Antenna: For transmitting and receiving signals.
- Stepless Volume Knob: Rotate to adjust listening volume.
- HD Backlit LCD: Displays channel, battery status, and other settings.
- PTT (Push-to-Talk) Button: Press and hold to transmit, release to listen.
- Call/Keypad Lock Button: Press to send a call tone. Press and hold to lock/unlock the keypad.
- Menu/Power Button: Press to enter menu. Press and hold to power on/off.
- Up/Down Buttons: Navigate menu options and change channels/settings.
- Microphone: Speak into this when transmitting.
- AAA Sound Speaker: For clear audio output.
- 2.5mm Earpiece Jack: For connecting compatible audio accessories.
- Micro USB Jack: For charging the walkie talkie.
Setup
1. Battery Installation
- Ensure the walkie talkie is powered off.
- Remove the belt clip by pushing the tab and sliding it upwards.
- Open the back cover by gently prying it open from the bottom notch.
- Insert the 4500mAh rechargeable battery pack, ensuring correct polarity.
- Replace the back cover and reattach the belt clip.
2. Charging the Batteries
Your walkie talkies come with a 4500mAh rechargeable battery. For optimal performance, fully charge the battery before first use.

- Connect the micro USB charging cable to the Micro USB Jack on the walkie talkie.
- Plug the other end of the USB cable into a compatible USB power source (e.g., wall adapter, car charger, power bank, computer USB port).
- The charging indicator on the LCD will show charging status.
- A full charge typically takes 3-5 hours and provides approximately 48-72 hours of standby time.
3. Attaching Belt Clip and Lanyard
- Slide the belt clip onto the back of the walkie talkie until it clicks into place.
- Attach the lanyard to the designated loop on the walkie talkie for convenient carrying.
Operating Instructions
1. Power On/Off
- To power on, press and hold the MENU/POWER button until the LCD screen illuminates.
- To power off, press and hold the MENU/POWER button until the LCD screen turns off.
2. Adjusting Volume
- Rotate the Stepless Volume Knob clockwise to increase volume and counter-clockwise to decrease volume.
3. Selecting a Channel
- Press the MENU/POWER button once to enter channel selection mode. The channel number will flash.
- Use the UP or DOWN buttons to select one of the 22 available FRS channels.
- Press the PTT button or MENU/POWER button again to confirm your selection and exit the menu.
4. Setting Privacy Codes (CTCSS/DCS)
Privacy codes help reduce interference from other users on the same channel. Both radios must be set to the same channel and privacy code to communicate.
- Press the MENU/POWER button twice to enter privacy code selection mode. The privacy code will flash.
- Use the UP or DOWN buttons to select one of the 142 available privacy codes (CTCSS/DCS).
- Press the PTT button or MENU/POWER button again to confirm your selection.
5. Transmitting and Receiving (PTT)
- To transmit, press and hold the PTT button. Speak clearly into the microphone.
- Release the PTT button to listen for a response.
6. iVOX Hands-Free Operation
The iVOX feature allows for voice-activated transmission without pressing the PTT button.

- Press the MENU/POWER button until the iVOX icon appears on the LCD.
- Use the UP or DOWN buttons to select the iVOX sensitivity level (e.g., 1-3, with 3 being most sensitive).
- Press the PTT button or MENU/POWER button to confirm.
- When iVOX is active, the radio will transmit automatically when you speak.
7. NOAA Weather Alert
Stay informed about severe weather conditions with the integrated NOAA Weather Radio feature.

- Press the NOAA/Scan button to access NOAA weather channels.
- Use the UP or DOWN buttons to cycle through the available NOAA channels.
- The radio will automatically alert you to severe weather broadcasts when this feature is active.
8. Keypad Lock
- To prevent accidental changes to settings, press and hold the CALL/KEYPAD LOCK button until the lock icon appears on the LCD.
- To unlock, press and hold the CALL/KEYPAD LOCK button again until the lock icon disappears.
9. Scanning Channels
- Press the NOAA/Scan button (short press) to activate the auto-scan feature. The radio will scan all channels for activity.
- It will stop on an active channel. Press PTT to transmit on that channel or NOAA/Scan again to resume scanning.
10. Call Tone
- A short press of the CALL/KEYPAD LOCK button will send an audible call tone to other radios on the same channel and privacy code.
Maintenance
- 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 fully discharging the battery frequently. Store the walkie talkie with a partially charged battery if not used for extended periods.
- Storage: Store the walkie talkie in a cool, dry place away from direct sunlight and extreme temperatures.
- Water Resistance: These walkie talkies are Not Water Resistant. Avoid exposure to rain, splashes, or immersion in water.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Battery is low or not installed correctly. | Charge the battery. Ensure the battery is correctly inserted with proper polarity. |
| Cannot transmit or receive | Different channels or privacy codes. Out of range. Keypad locked. | Ensure all radios are on the same channel and privacy code. Move closer to the other radio. Unlock the keypad. |
| Poor audio quality / Static | Weak signal. Interference. Volume too low. | Move to an open area. Adjust squelch level (if available in menu). Increase volume. |
| Limited range | Obstructions (buildings, hills). Environmental factors. | Range can be significantly reduced by terrain and structures. For optimal range, use in open areas with clear line of sight. The advertised maximum range is under ideal conditions. |
| Keypad unresponsive | Keypad is locked. | Press and hold the CALL/KEYPAD LOCK button to unlock the keypad. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Topsung |
| Model Number | b0d3ab2e-c7c0-4cd3-acdb-7baf16851dfe |
| Color | Blue Green Red Yellow |
| Number of Channels | 22 FRS Channels |
| Privacy Codes | 142 (CTCSS/DCS) |
| Frequency Range | FRS |
| Talking Range Maximum | Up to 5 Miles (under ideal conditions) |
| Battery Capacity | 4500mAh (Rechargeable) |
| Charging Time | 3-5 hours |
| Standby Time | 48-72 hours |
| Special Features | iVOX Hands-Free, NOAA Weather Service, Keypad Lock, Auto Squelch, Auto Memory, Auto Scan, Auto Power Saver, Low Battery Alert, Turbo Charging Tech, Drop Protection |
| Water Resistance Level | Not Water Resistant |
| Item Weight | 2.16 pounds (for the pack) |
| Package Dimensions | 8.74 x 6.81 x 2.56 inches |
Warranty and Support
Your Topsung K-12 FRS Walkie Talkies are covered by a 3-Year Manufacturer's Service.
For any product-related concerns, technical assistance, or warranty claims, please contact Topsung Technology directly. Seller customer service is often more knowledgeable about the product and can provide personalized after-sales support, including single piece or accessory replacement.
How to Get Timely Reply from Seller:
- Locate the store name "topsung technology" on the product detail page (usually below the "Add to Cart" button).
- Click on "topsung technology".
- Click "Ask a question".
- Follow the Messaging Assistant instructions, selecting "An item for sale" — "Something else" — "Other".
- Send your message detailing your concern.


