1. Introduction
The CACAZI C10 Wireless Pager Doorbell is a versatile device designed for home care and emergency situations. It features a wireless SOS button and one or more receivers, providing a reliable alert system for the elderly, individuals with mobility impairments, or anyone needing assistance. With a strong wireless signal and multiple customizable options, it ensures timely notification and peace of mind.

2. Features
- Wireless Range: Up to 80 meters in open areas.
- Melodies: 60 selectable ringtones.
- Volume Levels: 5 adjustable levels (0-110dB), including mute function.
- Power-off Memory: Retains selected ringtone after power loss (for SOS button).
- Waterproof SOS Button: IP44 rated, dustproof design without screw chuck.
- Expandability: Supports up to 20 SOS buttons and 100 receivers.
- Receiver Plug Types: Available in US, EU, UK plugs, and AU adapters.
- Applicable Temperature: -30°C to 70°C.
- Versatile Use: Suitable for home, office, villa, hotel, hospital, apartment.

3. Setup Instructions
3.1. Components
Your package should include:
- SOS Button(s)
- Receiver(s)
- Lanyard (for SOS button)
3.2. SOS Button Battery Installation
The SOS button uses a CR2032 battery (not included). To install or replace the battery:
- Locate the slot at the bottom of the SOS button.
- Insert a small screwdriver into the slot and gently pry open the casing.
- Insert the CR2032 battery with the positive (+) side facing up.
- Close the casing securely until it clicks into place.

3.3. Receiver Placement
Plug the receiver into a standard electrical power socket in the area where you need to be alerted. Ensure the socket is easily accessible and not obstructed. Avoid placing the receiver or SOS button on iron doors or metal surfaces, as this can interfere with the wireless signal.


4. Operating Instructions
4.1. Pairing Signals (Matching Mode)
To pair the SOS button (transmitter) with the receiver:
- Plug in the receiver to a power socket.
- Press and hold the Volume button on the side of the receiver for approximately 4-5 seconds. The receiver's LED light will turn on, indicating it has entered learning mode.
- Release the Volume button.
- Immediately press the SOS button (transmitter). The receiver will flash its light and emit a ringtone, indicating a successful pairing.
4.2. Modifying and Locking Music
To select and lock a specific ringtone for the SOS button:
- Before plugging in the receiver, press and hold the Volume button.
- While holding the Volume button, plug the receiver into a power socket. Keep holding until the receiver's LED light turns on.
- Release the Volume button.
- Press the Music button (on the side of the receiver) repeatedly to cycle through the 60 available ringtones until you find your preferred one.
- Once the desired ringtone is playing, press and hold the Volume button again until the LED light turns on.
- Immediately press the SOS button (transmitter) twice. The music is now successfully locked to that SOS button.
4.3. Adjusting Volume
To adjust the volume of the receiver:
- Press the Volume button on the side of the receiver to cycle through the 5 volume levels (0-110dB). One of the levels is a mute function.
4.4. Using the SOS Button
When assistance is needed, simply press the large 'SOS' button on the transmitter. The paired receiver(s) will sound the selected ringtone and flash its LED light to alert caregivers.

5. Maintenance
5.1. Battery Replacement
The SOS button's CR2032 battery should be replaced when the button's indicator light no longer flashes or the signal range decreases significantly. Follow the steps in section 3.2 for battery installation.
5.2. Cleaning
Wipe the receiver and SOS button with a soft, dry cloth. Do not use abrasive cleaners or immerse the devices in water. While the SOS button is waterproof (IP44), it is not designed for submersion.
6. Troubleshooting
6.1. Device Not Working / No Signal
- Check Pairing: If the device is not working normally upon receipt, try pairing the signals first as described in section 4.1.
- Battery Check: Ensure the CR2032 battery in the SOS button is correctly installed and not depleted.
- Signal Interference: The wireless signal can be affected by obstacles. The more obstacles, the more serious the signal loss. Avoid placing the SOS button or receiver on iron doors or near large metal objects.
- Receiver Functionality: If one of multiple receivers is not working (e.g., no sound), ensure it is properly plugged in and has been successfully paired.
- Contact Support: If problems persist, contact customer support for assistance. They may provide a video guide or arrange for replacement parts if necessary.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | C10 |
| Brand Name | CACAZI |
| Type | Wireless Doorbell / Pager |
| Power Source | Battery (SOS Button), AC (Receiver) |
| Origin | Mainland China |
| Color | Black/White (depending on variant) |
| SOS Button Remote Range | 80 meters in open area |
| SOS Button Battery Type | CR2032 (not included) |
| Melody | 60 ringtones |
| Receiver Plug Type | US/EU/UK Plug, AU adapter |
| Volume | 5 levels (0-110dB) |
| Receiver Power Supply | 110-240V |
| Waterproof Rated | IP44 (SOS Button) |
| Applicable Temperature | -30°C to 70°C |
| Applicable Space | Home/Office/Villa/Hotel/Hospital/Apartment |
| SOS Button Dimensions | 60 x 34 x 11.5 mm |
| Receiver Dimensions | 95 x 65 x 24 mm |
8. User Tips
- Battery Installation: When opening the SOS button for battery installation, use a small screwdriver in the slot at the bottom and apply gentle force to avoid damage.
- Volume Control: The receiver offers 5 volume levels, including a mute option. You can adjust it to a low setting if you are nearby and prefer a softer notification, or a high setting for louder environments.
- Signal Optimization: For best performance, ensure the SOS button and receiver are not placed directly on metal surfaces like iron doors, as this can significantly reduce the wireless range.
- Ringtone Customization: Take advantage of the 60 available ringtones to choose a distinct sound for different SOS buttons if you have multiple, helping you differentiate between alerts.
9. Additional Resources
For further detailed instructions and diagrams, you may refer to the official user manual PDF: