Introduction
This manual provides detailed instructions for the Lavifree Bluetooth Wireless Headphones, Model VJ033. Please read this manual carefully before using the product to ensure proper operation and to maximize your listening experience.

Image 1: Lavifree Bluetooth Wireless Headphones VJ033 (Blue color variant).
Key Features
- Excellent Hi-Fi Stereo Sound & Rich Bass: Dual 40mm large-aperture driver units for powerful crystal sound and bass.
- Bluetooth 5.0 Technology: Stable transmission speed, lower latency, and better audio output.
- LED Lights: Unique lights that can sync with music rhythm. Can be turned off to save battery.
- Comfortable Ergonomic Design: Adjustable headband and soft protein foam leather earmuffs for comfortable wear.
- Foldable Structure: Convenient for travel and storage.
- Built-in Microphone: For hands-free calls.
- Wireless Range: Up to 10 meters (33 feet) for stable connection.
- Long Battery Life: 500 mAh battery providing at least 15 hours of playtime. Full charge in 1 hour.
- Multiple Playback Modes: Supports Bluetooth, wired mode (3.5mm audio cable), Micro SD/TF card, and FM radio.
- Broad Compatibility: Compatible with iPhone, iPad, Android cellphones, PCs, and tablets.
Package Contents
Please check the package for the following items:
- Lavifree Bluetooth Wireless Headphones VJ033
- USB Charging Cable
- 3.5mm Audio Cable
- User Manual (This document)

Image 2: Headphones with included USB charging cable and 3.5mm audio cable.
Controls and Ports

Image 3: Detailed view of the headphone controls and ports.
- Volume - / Previous Track: Short press for Volume Down, Long press for Previous Track.
- Volume + / Next Track: Short press for Volume Up, Long press for Next Track.
- Pause / On/Off: Short press to Play/Pause, Long press to Power On/Off.
- Phone Key: Short press to answer/end call, Long press to refuse call.
- FM/MP3 Mode Button: Long press to switch between Radio, Wireless, TF card modes. Short press to choose natural, pop, rock, country, heavy bass in turn (for FM/MP3 mode).
- TF Card Port: Insert Micro SD/TF card for MP3 playback.
- USB Port: For charging the headphones.
- Audio Input Port: 3.5mm jack for wired connection.
Setup Guide
1. Charging the Headphones
Before first use, fully charge the headphones. Connect the USB charging cable to the headphone's USB port and to a power source (e.g., computer USB port, USB wall adapter). The LED indicator will show charging status and turn off when fully charged. A full charge takes approximately 1 hour and provides about 15 hours of playtime.

Image 4: Headphones connected for charging.
2. Powering On/Off
- To Power On: Long press the "Pause / On/Off" button until the LED indicator lights up.
- To Power Off: Long press the "Pause / On/Off" button until the LED indicator turns off.
3. Bluetooth Pairing
- Ensure the headphones are powered off.
- Long press the "Pause / On/Off" button until the LED indicator flashes blue and red alternately, indicating pairing mode.
- On your device (smartphone, tablet, PC), enable Bluetooth and search for available devices.
- Select "VJ033" (or similar name) from the list of devices.
- Once paired, the LED indicator on the headphones will flash blue slowly.

Image 5: Headphones demonstrating compatibility with various devices.
Operating Instructions
1. Music Playback (Bluetooth Mode)
- Play/Pause: Short press the "Pause / On/Off" button.
- Volume Up: Short press the "Volume +" button.
- Volume Down: Short press the "Volume -" button.
- Next Track: Long press the "Volume +" button.
- Previous Track: Long press the "Volume -" button.
2. Phone Calls
- Answer/End Call: Short press the "Phone Key" button.
- Refuse Call: Long press the "Phone Key" button.
3. Wired Mode (AUX)
Connect the provided 3.5mm audio cable to the headphone's Audio Input Port and to your audio device's 3.5mm jack. The headphones will automatically switch to wired mode. Note that some controls (like volume, track change) might need to be adjusted directly on your audio device in wired mode.
4. Micro SD/TF Card Playback
Insert a Micro SD/TF card loaded with MP3 audio files into the TF Card Port. Long press the "FM/MP3 Mode Button" to switch to TF card mode. Use the Volume +/- buttons for track navigation and the Pause/On/Off button for play/pause.
5. FM Radio Mode
Long press the "FM/MP3 Mode Button" to switch to FM radio mode. Short press the "FM/MP3 Mode Button" to scan for stations. Use the Volume +/- buttons to change stations.
6. LED Light Control
The headphones feature LED lights that can sync with music. To turn the lights off and conserve battery power, long press the "Phone Key" button.

Image 6: Headphones with LED lights active, creating a visual effect.
Care and Maintenance
- Keep the headphones dry. Do not expose to water or moisture.
- Clean the headphones with a soft, dry cloth. Do not use abrasive cleaners.
- Store the headphones in a cool, dry place away from extreme temperatures.
- Avoid dropping or subjecting the headphones to strong impacts.
- When not in use, fold the headphones for compact storage to prevent damage.

Image 7: The foldable design of the headphones for easy portability and storage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Headphones do not power on. | Low battery. | Charge the headphones for at least 1 hour. |
| Cannot pair via Bluetooth. | Headphones not in pairing mode; device Bluetooth off; too far from device. | Ensure headphones are in pairing mode (flashing blue/red). Turn on Bluetooth on your device. Move headphones closer to the device (within 10 meters). |
| No sound in wired mode. | Audio cable not fully inserted; incorrect audio source selected on device. | Ensure 3.5mm audio cable is securely connected at both ends. Check audio output settings on your device. |
| LED lights not working or not syncing. | Lights turned off; low battery. | Long press the "Phone Key" button to toggle lights. Charge the headphones. |
| Poor sound quality or static. | Interference; low battery; device too far. | Move away from sources of interference. Charge headphones. Move closer to the connected device. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | VJ033 |
| Brand | Lavifree |
| Connectivity Technology | Wireless (Bluetooth 5.0), Wired (3.5mm Jack) |
| Wireless Communication Technology | Bluetooth 5.0 |
| Bluetooth Range | 10 Meters |
| Audio Driver Type | Dynamic Driver (Dual 40mm large-aperture units) |
| Earpiece Shape | Over Ear |
| Special Features | LED lights, Hi-Fi Stereo Sound, Foldable, Built-in Mic, Micro SD/TF Card Support, FM Radio |
| Battery Capacity | 500 mAh Lithium Polymer |
| Playtime | Approximately 15 hours |
| Charging Time | Approximately 1 hour |
| Dimensions | 7.24 x 6.46 x 3.7 inches (Package) |
| Item Weight | 12.6 ounces |
| Material | Plastic |
Product Video Demonstration
Video 1: An overview of the Lavifree Bluetooth LED Wireless Headphones, highlighting key features and design. This video demonstrates the product's appearance, LED lights, and various functionalities.
Warranty and Support
For warranty information or technical support, please refer to the contact details provided with your purchase documentation or visit the official Lavifree website. Keep your proof of purchase for warranty claims.




