1. Introduction
Thank you for choosing the Callez 3.5mm Cell Phone Headset. This headset is designed to provide clear audio and comfortable wear for various communication needs, including phone calls, online meetings, gaming, and music listening. It features a noise-cancelling microphone and versatile compatibility with a wide range of devices.
This manual provides detailed instructions on how to set up, operate, and maintain your headset to ensure optimal performance and longevity.

Image: The Callez 3.5mm Cell Phone Headset, showcasing its design with the 3.5mm jack and in-line controls.
2. What's in the Box
Please check the package contents to ensure all items are present:
- Callez 3.5mm Headset (with integrated cable and 3.5mm jack)
- Dual 3.5mm Y-adapter (for separate headphone and microphone ports)
3. Product Overview
3.1 Headset Components
- Adjustable Headband: Allows for a comfortable fit on various head sizes.
- Breathable Earcushions: Designed for extended wear comfort.
- 330° Rotatable Microphone Boom: Flexible arm for optimal microphone positioning.
- In-line Control Unit: Provides easy access to volume and call management.
- 3.5mm Jack: Universal connector for compatible devices.

Image: Diagram illustrating the adjustable headband, breathable earmuff, and 330° rotatable microphone for enhanced comfort.
3.2 In-line Controls
The in-line control unit provides convenient access to essential functions:
- Volume Control: Slide switch to adjust audio output level.
- Answer/End Button: Press to answer or end calls.

Image: Close-up view of the in-line control unit, highlighting the volume control and answer/end call button.
4. Setup and Connectivity
4.1 Connecting to Devices
The Callez headset is compatible with devices featuring a single 3.5mm audio jack, such as most smartphones, tablets, and laptops. Simply plug the 3.5mm jack into your device's audio port.

Image: Visual representation of the headset connecting to various devices including tablets, smartphones, MP3 players, laptops, and PS4 consoles via a 3.5mm jack.
4.2 Using the Dual 3.5mm Y-Adapter
For desktop PCs or older laptops that have separate 3.5mm ports for microphone input and headphone output, use the included dual 3.5mm Y-adapter. Connect the headset's 3.5mm jack to the Y-adapter, then plug the green connector of the Y-adapter into your computer's headphone jack and the pink connector into the microphone jack.

Image: Illustration showing the dual 3.5mm Y-adapter and its connection to a 3.5mm jack, alongside various compatible devices like Mac, Android, and Windows computers.
4.3 iPhone Compatibility Note
For iPhone 11/12/13 and newer models, an original Lightning to 3.5mm adapter is required. This adapter is not included with the headset and must be supplied by Apple or an authorized retailer to ensure proper functionality for phone calls.

Image: Diagram showing an Apple Lightning to 3.5mm adapter and an iPhone, indicating that the adapter is not included and is necessary for newer iPhone models.
5. Operating Instructions
5.1 Adjusting Volume
Use the slide switch on the in-line control unit to increase or decrease the listening volume.
5.2 Answering and Ending Calls
Press the answer/end button on the in-line control unit to accept an incoming call or to terminate an ongoing call.
5.3 Microphone Positioning
Adjust the flexible microphone boom to position the microphone approximately 1-2 inches from your mouth for optimal voice pickup. The 330° rotation allows for precise placement on either side of your head.
5.4 Noise Cancelling Feature
The built-in noise-cancelling microphone is designed to reduce background noise, ensuring clearer communication. Position the microphone correctly to maximize this feature's effectiveness.

Image: A person wearing the headset, demonstrating the noise-cancelling microphone feature with a graphic showing sound wave reduction before and after processing.
6. Maintenance and Care
To ensure the longevity and optimal performance of your Callez headset, follow these care guidelines:
- Cleaning: Wipe the headset with a soft, dry cloth. For ear cushions, a slightly damp cloth can be used, but ensure they are completely dry before use. Do not use harsh chemicals or abrasive cleaners.
- Storage: Store the headset in a clean, dry place away from extreme temperatures and direct sunlight.
- Handling: Avoid pulling on the cable or microphone boom forcefully. Handle the headset by the earcups or headband.
- Liquid Exposure: The headset is not water-resistant. Avoid exposure to liquids.
7. Troubleshooting
If you encounter issues with your Callez headset, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from headset | Incorrect connection; Device volume too low; Headset volume too low; Incorrect audio output selected on device. | Ensure 3.5mm jack is fully inserted. For PC, ensure Y-adapter is correctly used. Increase device and headset volume. Check audio output settings on your computer/phone. |
| Microphone not working | Incorrect connection; Microphone muted; Incorrect audio input selected on device; Microphone boom not positioned correctly. | Ensure 3.5mm jack is fully inserted. For PC, ensure Y-adapter is correctly used. Check if microphone is muted on the in-line control or device. Verify microphone input settings on your computer/phone. Adjust microphone boom closer to your mouth. |
| Sound is distorted or unclear | Loose connection; Device audio issues; Interference. | Reconnect the headset. Test with another device to rule out device issues. Move away from potential sources of electronic interference. |
| Headset uncomfortable | Improper adjustment. | Adjust the headband and microphone boom for a more comfortable fit. |
8. Specifications
Detailed technical specifications for the Callez 3.5mm Headset (Model C802E2):
| Feature | Description |
|---|---|
| Model Name | C802E2 |
| Connectivity Technology | Wired |
| Headphones Jack | 3.5 mm Jack |
| Noise Control | Sound Isolation, Noise Cancellation (Microphone) |
| Frequency Range | 20 Hz - 20,000 Hz |
| Impedance | 32 Ohm |
| Control Type | Volume Control & Call Control (Button) |
| Microphone | Included, Noise Cancelling, 330° Rotatable Boom |
| Ear Placement | Over Ear |
| Form Factor | On Ear |
| Material | Faux Leather, Plastic |
| Item Weight | 2.7 Ounces (approx. 77 grams) |
| Product Dimensions | 6.9 x 6.1 x 2.1 inches |
| Compatible Devices | Cellphones, Desktops, Laptops, Tablets |
| UPC | 796914368489 |

Image: The headset floating with feathers, emphasizing its lightweight design at 77g/2.7oz.
9. Warranty and Support
Callez provides a comprehensive warranty and support for your headset:
- Warranty: This product is covered by a 2-year warranty from the date of purchase.
- Money-Back Guarantee: A 45-day money-back guarantee is offered.
- Customer Support: For any questions, technical assistance, or warranty claims, please contact Callez customer service. Refer to the product packaging or the official Callez website for contact information.


