1. Introduction
The voijump Wireless Voice Amplifier with Lavalier Microphone is a portable PA system designed to enhance vocal projection in various settings. This device is ideal for teachers, presenters, tour guides, and anyone needing clear, amplified sound without the constraints of wired microphones. Featuring omnidirectional sound reception, intelligent noise reduction, and a compact design, it ensures your voice is heard clearly and comfortably.
Image 1.1: The voijump Wireless Voice Amplifier and its accompanying lavalier microphone.
2. Package Contents
Please check the box for the following items:
- Voice Amplifier (x1)
- Wireless Microphone (x1)
- USB Charging Cable (x1)
- Strap (x1)
- User Manual (x1)
3. Product Overview & Features
The voijump Wireless Voice Amplifier is engineered for superior sound quality and user convenience. Key features include:
- Omnidirectional Sound Reception: Built-in intelligent active noise reduction chips ensure clear recording and effective original sound recognition in noisy environments.
- High Fidelity Acoustic Technology: Ensures clear audio projection, suitable for large audiences.
- Automatic Connection: Wireless microphone and speaker pair automatically upon power-on.
- Long Battery Life: Amplifier offers 10-12 hours of use, microphone 6-8 hours, on a full charge.
- Lightweight & Portable: Compact design with a clip and strap for easy carrying and comfortable wear.
- Wireless Transmission Distance: Up to 20 meters with strong anti-interference capability.
- Volume Control: Easily adjust amplification levels.
- Wired Headphone Support: Features a 3.5mm jack for wired headphone use.
Image 3.1: The voice amplifier showcasing its advanced Hi-Fi acoustic technology, capable of covering up to 10,000 sq ft.
Image 3.2: The voice amplifier and microphone highlighting their rechargeable batteries and long usage times (8 hours for microphone, 10 hours for amplifier).
Image 3.3: A comparison illustrating the comfort and reduced burden of a lavalier microphone compared to a traditional head-mounted microphone.
4. Setup & Pairing
Follow these simple steps to set up and pair your voijump Wireless Voice Amplifier:
- Step 1: Turn on the receiver knob switch on the voice amplifier. Turn it to the 'ON' position. The green indicator light will flash.
- Step 2: Short press the power button of the wireless microphone for 2 seconds. The indicator light on the microphone will illuminate.
- Step 3: Once successfully paired, the receiving end light on the amplifier will remain steadily on. Clip the microphone in an appropriate position (e.g., lapel) to begin using it for amplification.
If the devices do not pair successfully, turn both devices off and repeat the steps.
Image 4.1: Visual representation of the three-step setup process for the voice amplifier and wireless microphone.
Video 4.1: An official video demonstrating the setup and use of the voijump Wireless Voice Amplifier with Wireless Lavalier Microphone.
5. Operating Instructions
5.1 Volume Control
The voice amplifier features a knob switch that controls both power and volume. Rotate the knob to turn the device on/off and adjust the amplification level to your preference.
5.2 Wired Headphone/Microphone Support
The amplifier includes a 3.5mm port, allowing you to connect wired headphones for personal monitoring or an external wired microphone if desired. This provides flexibility for different usage scenarios.
Image 5.1: Close-up of the voice amplifier showing the 3.5mm port for connecting wired headphones or an external wired microphone.
Image 5.2: Illustration of the voice amplifier's versatility, supporting both wireless and wired microphone connections.
6. Battery Life & Charging
The voice amplifier is equipped with a 2200mAh rechargeable battery, providing approximately 10-12 hours of amplification on a full charge (3-4 hours charging time). The wireless microphone has an 85mAh battery, offering 6-8 hours of usage after 1-1.5 hours of charging. Use the provided USB charging cable to recharge both devices.
Image 6.1: A visual guide to the battery capacities, usage times, and charging durations for both the voice amplifier and the wireless microphone.
7. Portability & Usage Scenarios
Designed for maximum portability, the voice amplifier and microphone are lightweight and compact. The amplifier features a clip on the back for attachment to clothing or pants, and a strap is included for comfortable waist wear. This design allows for hands-free operation in various professional and recreational settings.
Recommended Uses:
- Teaching & Classroom Instruction
- Public Speaking & Presentations
- Meetings & Conferences
- Tour Guiding
- Yoga & Fitness Instruction
- Outdoor Activities
- Streaming & Vlogging
Image 7.1: A user demonstrating the portability and ease of use of the voice amplifier and microphone during an active session, highlighting its 'plug and use' functionality without Bluetooth or app requirements.
Image 7.2: A collage depicting diverse applications of the voice amplifier, including classroom teaching, business meetings, and fitness instruction.
Video 7.1: A user review demonstrating the voice amplifier's effectiveness for classroom and tour guide use, highlighting its strong amplification.
8. Specifications
| Brand | voijump |
| Model Name | Wireless Voice Amplifier |
| Model Number | DT623 |
| Connectivity Technology | Wireless |
| Connector Type | 3.5 mm Jack |
| Special Feature | Volume Control |
| Color | Black |
| Polar Pattern | Omnidirectional |
| Microphone Form Factor | Lavalier |
| Power Source | Battery Powered |
| Item Weight | 0.3 Kilograms |
| Item Dimensions | 3 x 1.5 x 5 inches |
| Manufacturer | Voijump |
| UPC | 797387993246, 797387082681 |
9. Troubleshooting
If you encounter any issues with your voijump Wireless Voice Amplifier, please refer to the following common troubleshooting steps:
- No Sound/Low Volume:
- Ensure both the amplifier and microphone are powered on.
- Check that the volume knob on the amplifier is turned up.
- Verify that the microphone and amplifier are successfully paired (indicator lights should be steady).
- Ensure the microphone is positioned correctly and not obstructed.
- Microphone Not Pairing:
- Turn off both the amplifier and microphone, then restart the pairing process as described in Section 4.
- Ensure both devices are sufficiently charged.
- Confirm that there are no other wireless devices causing interference nearby.
- Distorted Sound/Feedback:
- Reduce the volume level on the amplifier.
- Increase the distance between the microphone and the amplifier.
- Ensure the microphone is not too close to your mouth or other sound sources.
- Short Battery Life:
- Ensure devices are fully charged before use.
- Battery performance may decrease over time with prolonged use.
10. Warranty & Support
The voijump Wireless Voice Amplifier (Model DT623) comes with a 3-Year Warranty from the manufacturer.
For any questions, technical assistance, or warranty claims, please contact our customer support. We provide 24-hour online support to ensure your satisfaction.
Refer to the contact information provided with your purchase or visit the official voijump website for further details.