1. Introduction
The ChunHee Wireless Intercom System provides convenient and reliable room-to-room communication for various environments, including homes, offices, and outdoor settings. This system is designed for ease of use, offering clear communication without the need for internet access or complex wiring. It is particularly beneficial for families with elderly members, children, or individuals with mobility issues, ensuring timely and efficient communication across different areas.
This manual provides comprehensive instructions on setting up, operating, and maintaining your ChunHee Wireless Intercom System. Please read it thoroughly before use to ensure optimal performance and longevity of your device.
2. Product Overview
2.1 Package Contents
Upon opening your ChunHee Wireless Intercom System package, you will find the following components:
- ChunHee Wireless Intercom Units (6 Pcs SET 3)
- Charging Adapters
- USB Charging Cables
- Lanyards
- User Manual
Video: Unboxing and overview of the ChunHee Wireless Intercom System components, including the intercom units, charging accessories, and lanyards.

Image: A set of six ChunHee Wireless Intercom units, showcasing their compact design.
2.2 Key Features
- Wireless Communication: Enables easy and quick communication between different rooms or areas without wiring.
- Emergency Alarm: Features a loud emergency alarm for critical situations, activating on both local and remote intercoms on the same channel.
- Long Range: Offers communication up to 500 meters (approximately 0.31 miles) in open areas, suitable for multi-level homes or small outdoor spaces.
- Dual PTT Keys: Equipped with a large circular Push-To-Talk (PTT) button on the front and an additional PTT button on the side for convenient operation.
- VOX Functionality: Supports Voice Operated Exchange (VOX) for hands-free communication, allowing you to speak without pressing the PTT button.
- 16 Channels: Provides 16 available channels for flexible communication setups.
- Portable Design: Handheld size with a clip for easy carrying in pockets, clipped to clothing, or worn around the neck.
- Rechargeable Battery: Built-in Lithium Polymer battery with up to 48 hours of average battery life.

Image: Demonstrates the portability of the intercom, showing it in a pocket, clipped to clothes, and worn around the neck.

Image: Illustrates the wide application of the intercom system in office, caregiver, kids' walkie-talkie, and pregnancy monitoring scenarios.
2.3 Controls and Indicators
Familiarize yourself with the buttons and indicators on your intercom unit:
- PTT Button (Push-To-Talk): Large circular button on the front, and a smaller button on the side. Press and hold to transmit your voice.
- ON/OFF Button: Power button to turn the unit on or off.
- CH+ / CH- Buttons: Used to increase or decrease the communication channel.
- VOL+ / VOL- Buttons: Used to increase or decrease the speaker volume.
- Indicator Light: Located around the PTT button, changes color to indicate status (Charging, Transmitting, Receiving).

Image: A close-up view highlighting the extra-large PTT button for easy use.

Image: Diagram showing the charging indicator light colors: Blue for Charging, Red for Transmitting, Green for Receiving, and Flashing Green every 10 seconds after turn on.
3. Setup
3.1 Charging the Intercom Units
Before first use, fully charge all intercom units. The units are equipped with a rechargeable Lithium Polymer battery.
- Connect the USB charging cable to the charging port on the intercom unit.
- Connect the other end of the USB cable to the provided charging adapter, a computer's USB port, or a mobile power bank.
- The indicator light will illuminate blue while charging.
- Once fully charged, the indicator light will turn off. A full charge typically provides up to 48 hours of average use.
Video: Demonstrates how to charge the intercom unit using the USB cable and adapter, showing the charging indicator light.

Image: Visual representation of the intercom's 48-hour battery life after a full charge.
3.2 Powering On/Off
To power on or off an intercom unit:
- Press and hold the ON/OFF button (located below the PTT button) for approximately 3 seconds until you hear a voice prompt indicating power status.
Video: Demonstrates how to turn the intercom unit on and off by pressing the power button.
3.3 Channel Selection
For effective communication, all intercom units intended to communicate with each other must be set to the same channel.
- Press the CH+ or CH- buttons to cycle through the 16 available channels.
- A voice prompt will announce the selected channel number.
- Ensure all units are on the same channel for communication.
Video: Shows how to change channels using the CH+ and CH- buttons, with voice prompts indicating the current channel.
4. Operating Instructions
4.1 Basic Communication (PTT Mode)
To communicate using the Push-To-Talk (PTT) function:
- Ensure both intercom units are powered on and set to the same channel.
- Press and hold either the large circular PTT button on the front or the smaller PTT button on the side. The indicator light will turn red, indicating transmission.
- Speak clearly into the microphone.
- Release the PTT button when you finish speaking. The indicator light will turn green on the receiving unit.
Video: Demonstrates two-way communication using the PTT button, showing the red light for transmitting and green for receiving.
4.2 VOX Function (Hands-Free Communication)
The VOX (Voice Operated Exchange) function allows for hands-free communication without needing to press the PTT button. This mode is ideal for situations where you need to keep your hands free.
- An intercom unit in VOX mode should be stationed on your side.
- To activate the intercom in VOX mode, you may need to say "Hello" or a similar word to trigger the voice detection before speaking your message.
- VOX mode can last for up to 24 hours.
- The other user can still press and hold the PTT button to talk to you.

Image: Illustrates the ease of use with the VOX function, showing a child and an adult communicating hands-free.

Image: An elderly man holding the intercom, emphasizing that the VOX function simplifies operation for all users.
4.3 Emergency Alarm
The intercom system includes an emergency alarm feature for urgent situations.
- To activate the emergency alarm, press and hold the Emergency Alarm button (refer to product diagram for exact location, typically a dedicated button or a long press on a specific key).
- A loud alarm will sound on both the local unit and all remote intercoms set to the same channel.

Image: Depicts the emergency alarm feature, showing scenarios where it can provide peace of mind for the elderly in case of a fall or other emergency.

Image: Illustrates the intercom's role in quickly addressing emergency situations, such as a fall, by enabling immediate communication.
4.4 Keypad Lock
To prevent accidental channel changes or button presses, you can activate the keypad lock function.
- Press and hold the CH+ button for 3 seconds to lock the keypad.
- Repeat the action to unlock the keypad.

Image: Diagram showing how to activate the keypad lock by pressing and holding the CH+ button for 3 seconds, preventing unintended channel changes.
4.5 Volume Adjustment
Adjust the speaker volume to your preferred level.
- Press the VOL+ button to increase the volume.
- Press the VOL- button to decrease the volume.
- The intercom features 8 adjustable volume levels.

Image: Illustrates the high-quality loudspeaker and the 8 adjustable volume levels of the intercom unit.
5. Maintenance
5.1 Battery Care
- To avoid being startled by low battery voice alerts during the night, it is recommended to charge your intercom system regularly or leave it on charge overnight.
- If you are sensitive to light, it is recommended to place the intercom upside down when sleeping at night to avoid the indicator light.

Image: Shows a low battery alert scenario, advising regular charging to prevent interruptions.

Image: Advises users sensitive to light to place the intercom face down at night to avoid disturbance from the indicator light.
5.2 Cleaning and Storage
- Wipe the intercom units with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Store the units in a cool, dry place away from direct sunlight and extreme temperatures when not in use for extended periods.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Intercom not turning on. | Low battery. | Charge the intercom unit fully. |
| Cannot communicate with another unit. | Units are on different channels. | Ensure all units are set to the same channel. |
| Cannot communicate with another unit. | Units are out of range. | Move units closer to each other. The maximum talking range is 500 meters in open areas. Obstacles like walls can reduce range. |
| Volume cannot be adjusted. | Keypad is locked. | Unlock the keypad by pressing and holding the CH+ button for 3 seconds. |
| "Please charge battery" alert even when plugged in. | Faulty charging cable/adapter or battery issue. | Try a different USB charging cable or adapter. If the issue persists, contact customer support. |
7. Specifications
| Feature | Detail |
|---|---|
| Brand | ChunHee |
| Model Number | WT26-6 |
| Item Weight | 2.31 pounds (for the set) |
| Product Dimensions | 2.09 x 0.67 x 4.17 inches (per unit) |
| Battery Type | 1 Lithium Polymer battery (included) |
| Average Battery Life | 48 Hours |
| Voltage | 3.7 Volts (DC) |
| Number of Channels | 16 |
| Frequency Range | 400-512 MHz |
| Talking Range Maximum | 500 Meter (approx. 0.31 miles) |
| Tuner Technology | UHF |
| Water Resistance Level | Water Resistant |
| Included Components | Intercom system with 16 channels, charging accessories, lanyards. |
8. Warranty and Support
ChunHee products are manufactured with high-quality standards. For warranty information, technical support, or any inquiries regarding your intercom system, please refer to the contact information provided on the product packaging or visit the official ChunHee website.
Please retain your proof of purchase for warranty claims.







