1. Introduction
Thank you for choosing the JUOVI ZS300 Portable Bluetooth Speaker. This manual provides essential information for the safe and efficient use of your new device. The ZS300 speaker features advanced Bluetooth 6.0 connectivity, IP68 waterproof rating, up to 24 hours of playback, and True Wireless Stereo (TWS) pairing for an enhanced audio experience. Please read this manual thoroughly before use and retain it for future reference.
2. Safety Information
- Do not expose the speaker to extreme temperatures or direct sunlight for prolonged periods.
- Ensure all rubber caps covering ports are securely closed to maintain the IP68 waterproof rating.
- Avoid dropping or subjecting the speaker to strong impacts.
- Do not attempt to disassemble, repair, or modify the speaker. This will void the warranty.
- Keep the speaker away from medical devices, as its magnetic components may interfere with their operation.
- Use only the provided charging cable or a certified equivalent.
Image: The JUOVI ZS300 speaker is designed for outdoor use and is IP68 waterproof, making it resistant to water and dust. Always ensure port covers are sealed.
3. Package Contents
Verify that all items are present in your package:
- JUOVI ZS300 Portable Bluetooth Speaker
- USB-C Charging Cable
- 3.5mm AUX Audio Cable
- Lanyard
- Quick Start Guide
4. Product Overview
4.1. Speaker Components
Image: Internal view highlighting the dual 50mm drivers responsible for the 20W audio output.
4.2. Control Buttons
The top panel of the speaker features several buttons for easy control:
- Power Button: Press and hold to power on/off. Short press to play/pause.
- Volume Down / Previous Track: Short press for volume down, long press for previous track.
- Volume Up / Next Track: Short press for volume up, long press for next track.
- Mode Button (M): Short press to switch between Bluetooth, AUX, and MicroSD modes.
- TWS Button: Press to initiate or cancel TWS pairing.
- Play/Pause Button: Short press to play or pause audio.
4.3. Ports and Connections
Located under a protective rubber cover on the side of the speaker:
Image: Detailed view of the speaker's connectivity ports, including USB-C, Micro SD, and AUX In.
- USB-C Charging Port (IN): For charging the speaker.
- USB-A Port (OUT): Functions as a power bank to charge other devices.
- MicroSD Card Slot: Insert a MicroSD card for MP3 playback.
- AUX In Port: Connect external audio devices via a 3.5mm audio cable.
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 USB-C port and a compatible USB power adapter (not included). The LED indicator will show charging status. A full charge takes approximately 2.5 hours and provides up to 24 hours of playback (actual time varies with volume and audio content).
Image: The speaker offers up to 24 hours of continuous playback on a single charge.
5.2. Power On/Off
Press and hold the Power button for 2-3 seconds to turn the speaker on or off. A sound prompt will indicate the power status.
6. Operating Instructions
6.1. Bluetooth Pairing
The JUOVI ZS300 uses Bluetooth 6.0 for stable and efficient wireless connection.
- Turn on the speaker. It will automatically enter Bluetooth pairing mode, indicated by a flashing blue LED.
- On your device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
- Select "JUOVI SOUND J1" from the list. Once connected, the LED will turn solid blue, and you will hear a confirmation sound.
- The speaker will automatically reconnect to the last paired device when powered on, if within range.
Image: The speaker utilizes Bluetooth 6.0 for a fast and stable connection with minimal interference.
6.2. True Wireless Stereo (TWS) Pairing
For an immersive stereo experience, you can pair two JUOVI ZS300 speakers together.
- Ensure both speakers are powered on and not connected to any other Bluetooth device.
- On one speaker (this will be the primary speaker), short press the TWS button. It will emit a sound and its LED will flash.
- The primary speaker will automatically search for and connect to the secondary speaker. Once paired, both speakers will emit a confirmation sound, and their LEDs will indicate TWS connection.
- Now, connect your device to the primary speaker via Bluetooth as described in section 6.1. Audio will play through both speakers in stereo.
- To disconnect TWS, short press the TWS button on either speaker.
Image: TWS pairing allows two speakers to connect wirelessly for a powerful 40W stereo sound experience.
6.3. AUX Mode
Connect an external audio device using the 3.5mm AUX audio cable. The speaker will automatically switch to AUX mode, or you can press the Mode (M) button to select it. In AUX mode, playback is controlled by the connected device.
6.4. MicroSD Card Playback
Insert a MicroSD card (up to 32GB, FAT32 format) containing MP3 audio files into the MicroSD card slot. The speaker will automatically switch to MicroSD mode and begin playback. Use the speaker's volume and track control buttons.
6.5. Hands-free Calling
When connected to your smartphone via Bluetooth, the built-in microphone allows for hands-free calls.
- Answer/End Call: Short press the Power button.
- Reject Call: Long press the Power button.
Image: The built-in microphone enables clear, hands-free conversations directly through the speaker.
6.6. Voice Assistant
Activate your phone's voice assistant (e.g., Siri, Google Assistant) by pressing the dedicated voice assistant button on the speaker. This allows for remote control of your phone's AI features.
7. Maintenance
- Clean the speaker with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Store the speaker in a cool, dry place when not in use.
- Always ensure the rubber cover for the ports is sealed when not in use, especially in wet or dusty environments, to maintain its IP68 rating.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on | Low battery | Charge the speaker fully. |
| No sound | Volume too low; Device not connected; Incorrect mode | Increase volume; Re-pair Bluetooth; Check AUX/MicroSD connection; Switch mode. |
| Bluetooth pairing fails | Speaker not in pairing mode; Device too far; Interference | Ensure speaker is flashing blue; Move device closer (within 10m); Turn off other Bluetooth devices. |
| TWS pairing fails | Speakers already connected to other devices | Disconnect both speakers from any Bluetooth devices before initiating TWS pairing. |
| Poor sound quality | Low battery; Device too far; Obstructions | Charge speaker; Move device closer; Remove obstructions between speaker and device. |
9. Specifications
| Feature | Detail |
|---|---|
| Brand | JUOVI |
| Model Name | J6311 |
| Speaker Type | Portable Speaker |
| Connectivity Technology | Bluetooth 6.0 |
| Max Output Power | 24 Watts |
| Audio Output Mode | Stereo (2.0 Channels) |
| Frequency Response | 20 KHz |
| Impedance | 4 Ohm |
| Signal-to-Noise Ratio | 90 dB |
| Speaker Size | 52 Millimeters (Dual Dynamic Drivers) |
| Water Resistance Level | IP68 (Waterproof, Dustproof, Shockproof) |
| Bluetooth Range | Up to 10 Meters |
| Battery Life | Up to 24 Hours (varies with usage) |
| Battery Charge Time | 2.5 Hours |
| Input Voltage | 5 Volts |
| Dimensions (DxWxH) | 6.2P x 19.6l x 6.6H cm |
| Weight | 530 Grams |
| Control Method | Voice, Buttons |
| Compatible Devices | Smartphones, Tablets, Laptops, MP3 Players |
10. Warranty and Support
The JUOVI ZS300 Portable Bluetooth Speaker comes with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects and workmanship under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or natural disasters.
For warranty claims or technical support, please contact JUOVI customer service through the retailer where you purchased the product or visit the official JUOVI website for contact information.