Introduction
Thank you for choosing the DCU TECNOLOGIC Action Pro Mono Bluetooth 5.0 Headset. This manual provides detailed instructions to help you get the most out of your new device. Please read it carefully before use and keep it for future reference.

Image: The DCU TECNOLOGIC Action Pro Mono Bluetooth 5.0 Headset, showcasing its sleek design and ear hook.
Package Contents
Ensure all items are present in the package:
- DCU TECNOLOGIC Action Pro Mono Bluetooth 5.0 Headset
- Charging Case with LED battery indicator
- USB-C Charging Cable
- 3 Pairs of Replacement Eartips (Sizes S, M, L)

Image: The headset, charging case, USB-C cable, and three pairs of eartips (S, M, L) included in the package.
Product Overview
The DCU TECNOLOGIC Action Pro Headset is designed for hands-free communication and audio playback. Key features include:
- Hands-Free Functionality: Ideal for answering and making calls or listening to music without needing to access your mobile phone.
- Dual-Point Connectivity: Allows simultaneous connection with two mobile devices, ensuring stable connection and sound transmission.
- Dual Microphone: Enhances sound quality during calls.
- Multifunction Button: Controls calls (hang up, answer, reject), music playback (play, pause), and activates virtual assistants like Siri (for iOS).
- Volume Control Buttons: Dedicated buttons for adjusting audio volume.
- Mute Button: For muting the microphone during calls.
- Adjustable Ergonomic Silicone Ear Hook: Provides a comfortable and secure fit. Can be worn on either the right or left ear.

Image: A visual representation of the headset highlighting its features, including dual-point connectivity, dual microphone, multifunction button, volume control, mute button, and adjustable ear hook.
Setup
1. Charging the Headset
Before first use, fully charge the headset and its charging case.
- Place the headset into the charging case.
- Connect the USB-C charging cable to the charging case and a power source (e.g., USB wall adapter, computer USB port).
- The LED indicator on the charging case will show the charging status. A full charge provides up to 18 hours of talk/music time for the headset, and the case provides up to 72 hours of additional battery life.

Image: The headset securely placed inside its charging case, displaying the LED battery indicator.
2. Pairing with a Device
The headset uses Bluetooth 5.0 for wireless connection.
- Ensure the headset is charged and powered on.
- Activate Bluetooth on your mobile device (smartphone, tablet, etc.).
- Search for available Bluetooth devices. The headset should appear as "DCU Action Pro" or similar.
- Select the headset from the list to pair. You may hear a confirmation tone once paired successfully.
Dual-Point Connectivity: To connect to a second device simultaneously, follow the pairing steps for the second device. The headset will maintain connection with both, allowing seamless switching between them.

Image: The headset wirelessly connecting to a smartphone, illustrating the Bluetooth pairing process.
Operating Instructions
Wearing the Headset
The adjustable ergonomic silicone ear hook allows for comfortable wear on either the right or left ear. Adjust the ear hook for a secure and comfortable fit.

Image: A person wearing the DCU TECNOLOGIC Action Pro Headset, demonstrating its comfortable and adjustable fit.
Call Management
- Answer Call: Press the Multifunction Button once.
- End Call: Press the Multifunction Button once during a call.
- Reject Call: Press and hold the Multifunction Button for 2 seconds.
- Mute/Unmute: Press the Mute Button during a call.
Music Playback
- Play/Pause: Press the Multifunction Button once.
- Volume Up: Press the Volume Up button.
- Volume Down: Press the Volume Down button.
Voice Assistant (Siri)
- Activate Siri: Press and hold the Multifunction Button for 2 seconds (for iOS devices).
Maintenance
- Clean the headset and charging case regularly with a soft, dry cloth.
- Avoid exposing the device to extreme temperatures, humidity, or corrosive substances.
- Do not immerse the headset in water as it is not waterproof.
- Store the headset in its charging case when not in use to protect it and keep it charged.
- Replace eartips as needed for hygiene and optimal sound quality.
Troubleshooting
| Problem | Solution |
|---|---|
| Headset does not turn on. | Ensure the headset is charged. Place it in the charging case and connect the case to a power source. |
| Cannot pair with a device. |
|
| No sound or poor sound quality. |
|
| Microphone not working. |
|
Specifications
| Brand | DCU TECNOLOGIC |
| Model Name | Action Pro |
| Model Number | 1 |
| Connectivity Technology | Wireless (Bluetooth) |
| Bluetooth Version | 5.0 |
| Bluetooth Range | Up to 30 Meters |
| Ear Placement | In-ear |
| Form Factor | In-ear with Ear Hook |
| Impedance | 16 Ohms |
| Sensitivity | 16 ohms |
| Frequency Range | 20-20,000 Hz |
| Noise Control | Passive Noise Reduction |
| Control Type | Multi-function button, Volume buttons, Mute button |
| Control Method | Tactile |
| Headset Battery Life | Up to 18 hours |
| Charging Case Battery Life | Up to 72 hours (additional) |
| Charging Port | USB-C |
| Water Resistance | Not waterproof |
| Material | Silicone (ear hook) |
| Compatible Devices | Mobile devices |
| Country of Origin | Spain |
Warranty and Support
For warranty information and customer support, please refer to the documentation provided with your purchase or visit the official DCU TECNOLOGIC website. Keep your proof of purchase for any warranty claims.
Manufacturer: DCU




