1. Introduction
The Vanzon V40 is a portable wireless Bluetooth speaker designed to deliver powerful stereo sound with enhanced bass. Featuring Bluetooth 5.0 for stable connectivity, IPX7 waterproof rating for outdoor use, and multiple playback options, it is suitable for various environments including home, travel, and outdoor activities. This manual provides detailed instructions for setting up, operating, and maintaining your Vanzon V40 speaker.

Image: Vanzon V40 Bluetooth Speaker showcasing its waterproof design.
2. Package Contents
Please check the package for the following items:
- Vanzon V40 Bluetooth Speaker
- USB-C Charging Cable
- 3.5mm AUX Cable
- User Manual
3. Product Features
- Shocking Stereo Sound: Equipped with TWS (True Wireless Stereo) technology, allowing you to pair two V40 speakers for an immersive dual stereo sound experience.
- IPX7 Waterproof: Provides strong waterproof protection with a durable silicone case and port cover, making it suitable for use in various wet environments.
- Multiple Play Modes: Supports Bluetooth 5.0, TF (MicroSD) card playback (WAV / FLAC / APE / MP3 formats), and 3.5mm AUX input for versatile audio sources.
- Extended Playtime: Features a high-efficiency 3600mAh lithium-ion battery, providing up to 24 hours of continuous playtime.
- Enhanced Connectivity: Offers an extended wireless range of up to 66 feet and includes a built-in microphone for clear hands-free calls.
- Rhythmic RGB Light Show: Integrated RGB lights provide a dynamic visual experience that syncs with your music.

Image: Illustration highlighting the 24-hour long playtime of the Vanzon V40 speaker.

Image: Visual representation of the Vanzon V40's Bluetooth 5.0 stable connection and extended range.

Image: The Vanzon V40 speaker demonstrating its IPX7 outdoor waterproof capability.
4. Controls and Ports
Familiarize yourself with the buttons and ports on your Vanzon V40 speaker:

Image: Labeled diagram of the Vanzon V40 speaker's controls and ports.
- Power Button: Press and hold to power on/off. Short press to switch 3D mode (if applicable).
- Mode Button (M): Short press to cycle through Bluetooth, TF Card, and AUX input modes.
- Play/Pause Button (►⏸): Short press to play or pause music. Press to answer/end calls.
- Volume Down (-): Short press to decrease volume. Long press to go to the previous track.
- Volume Up (+): Short press to increase volume. Long press to go to the next track.
- Charging Interface (Type-C): Connect the provided USB-C cable for charging.
- TF Card Port: Insert a MicroSD (TF) card for direct music playback.
- Aux-in Port: Connect external audio devices using the 3.5mm AUX cable.
- Rhythmic RGB Light: Integrated lights that respond to music.
- Hanging Buckle: For easy portability and attachment to bags.
5. Setup
5.1 Charging the Speaker
Before first use, fully charge the speaker. Connect the provided USB-C charging cable to the speaker's Type-C port and the other end to a USB power adapter (not included) or a computer's USB port. The charging indicator light will show charging status (refer to LED indicator section in manual for specific light behavior).
5.2 Power On/Off
- Power On: Press and hold the Power button for approximately 3 seconds until you hear an audible prompt and the indicator light turns on.
- Power Off: Press and hold the Power button for approximately 3 seconds until you hear an audible prompt and the indicator light turns off.
5.3 Bluetooth Pairing
To connect your Vanzon V40 speaker to a Bluetooth-enabled device:
- Ensure the speaker is powered on and in Bluetooth mode. If not, short press the 'M' (Mode) button until you hear the Bluetooth pairing prompt. The indicator light will flash, indicating it's ready for pairing.
- On your mobile device (smartphone, tablet, computer), enable Bluetooth and search for available devices.
- Select "Vanzon V40" from the list of found devices.
- Once successfully paired, you will hear a confirmation sound, and the indicator light will remain solid.
5.4 True Wireless Stereo (TWS) Pairing
To pair two Vanzon V40 speakers for true wireless stereo sound:
- Ensure both Vanzon V40 speakers are powered on and not connected to any other Bluetooth device.
- On one of the speakers (this will be the primary speaker), double-press the Play/Pause button. You will hear a prompt indicating TWS pairing mode.
- The two speakers will automatically search for and connect to each other. Once connected, you will hear a confirmation sound.
- Now, connect your mobile device to the primary speaker via Bluetooth as described in section 5.3. The audio will play through both speakers in stereo.

Image: TWS Bluetooth connection setup for multiple devices.
6. Operating Instructions
6.1 Mode Switching
Short press the 'M' (Mode) button to switch between the following modes:
- Bluetooth Mode: For wireless audio streaming from your paired device.
- TF Card Mode: Automatically plays music from an inserted MicroSD (TF) card.
- AUX Input Mode: For wired connection to audio devices via the 3.5mm AUX cable.
6.2 Music Playback
- Play/Pause: Short press the Play/Pause button.
- Volume Control: Short press the '+' button to increase volume, short press the '-' button to decrease volume.
- Next Track: Long press the '+' button.
- Previous Track: Long press the '-' button.
6.3 Call Handling (Bluetooth Mode)
- Answer/End Call: Short press the Play/Pause button.
- Reject Call: Long press the Play/Pause button.
6.4 RGB Light Control
The Vanzon V40 features rhythmic RGB lights. The lights will automatically activate when the speaker is powered on and playing music. There is no specific button for light control; they are designed to enhance the audio experience dynamically.
7. Maintenance
- Cleaning: Use a soft, damp cloth to clean the speaker's surface. Do not use harsh chemicals or abrasive cleaners.
- Waterproof Care: Ensure the port cover is securely sealed before exposing the speaker to water to maintain its IPX7 rating. After exposure to water, wipe the speaker dry before charging.
- Storage: Store the speaker in a cool, dry place away from extreme temperatures and direct sunlight. If storing for a long period, charge the battery to about 50% every few months to prolong battery life.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Low battery; Power button not pressed long enough. | Charge the speaker; Press and hold the Power button for 3 seconds. |
| Cannot pair with Bluetooth device. | Speaker not in pairing mode; Device's Bluetooth is off; Speaker already connected to another device. | Ensure speaker is in Bluetooth pairing mode (flashing indicator); Turn on Bluetooth on your device; Disconnect from other devices. |
| No sound or low volume. | Volume too low on speaker or device; Incorrect mode selected; AUX cable not fully inserted. | Increase volume on both speaker and device; Press 'M' button to select correct mode; Re-insert AUX cable firmly. |
| TWS pairing fails. | Speakers too far apart; One speaker already paired to a device. | Ensure speakers are within close proximity; Disconnect both speakers from any Bluetooth devices before TWS pairing. |
| Poor sound quality. | Bluetooth interference; Speaker too far from device; Low battery. | Move speaker closer to device; Avoid obstacles; Charge the speaker. |
9. Specifications
- Model Name: V40
- Speaker Type: Outdoor
- Special Feature: Portable
- Connectivity Technology: Bluetooth 5.0
- Wireless Range: Up to 66 feet
- Water Resistance Level: IPX7 Waterproof
- Speaker Maximum Output Power: 24 Watts
- Audio Output Mode: Stereo (with TWS support)
- Battery Capacity: 3600 Milliamp Hours
- Battery Life: Up to 24 Hours
- Product Dimensions: 7.87 x 3.27 x 3.23 inches
- Item Weight: 1.28 pounds
10. Warranty and Support
Vanzon products are manufactured to the highest quality standards. For warranty information or technical support, please refer to the contact details provided on the product packaging or visit the official Vanzon website. Keep your purchase receipt as proof of purchase for any warranty claims.





