Introduction
Thank you for choosing the neza S1 Portable Bluetooth Speaker. This manual provides essential information for setting up, operating, and maintaining your speaker to ensure optimal performance and longevity. The neza S1 is designed for high-quality audio, featuring 20W HD stereo sound, IPX7 waterproofing, vibrant RGB lights, and versatile connectivity options, making it ideal for various indoor and outdoor environments.

Figure 1: neza S1 Portable Bluetooth Speaker. This image displays the speaker with its dynamic RGB lighting and water splashes, highlighting its waterproof design.
Package Contents
Before you begin, please verify that all items are present in the package:
- neza S1 Portable Bluetooth Speaker x 1
- USB-C Charging Cable x 1
- Instruction Manual x 1
Setup
1. Charging the Speaker
For optimal performance, fully charge the speaker before first use. The speaker is equipped with a large-capacity battery providing up to 18 hours of playtime on a single charge (at 50% volume with lights off).
- Connect the provided USB-C charging cable to the speaker's charging port.
- Connect the other end of the cable to a USB power adapter (not included) or a computer's USB port.
- The charging indicator light will illuminate during charging and turn off when fully charged.

Figure 2: Battery Life and Charging. This image illustrates the speaker's 18-hour playtime capability and highlights its USB-C charging port for convenient power input.
2. Powering On/Off
- To power on, long press the power button (⏻) until the indicator light turns on.
- To power off, long press the power button (⏻) again until the indicator light turns off.
Operating Instructions
1. Bluetooth Pairing
The neza S1 uses Bluetooth 5.1 for fast and stable connections up to 100 feet.
- Ensure the speaker is powered on and in Bluetooth pairing mode (indicated by a flashing blue light).
- On your device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
- Select "S1" from the list of devices.
- Once paired, the indicator light will become solid blue, and you will hear a confirmation tone.
2. Multiple Play Modes
The speaker supports various audio input methods:
- Bluetooth Mode: Default mode for wireless audio streaming.
- FM Radio Mode: Tune into your favorite radio stations.
- USB Mode: Play audio directly from a USB flash drive.
- AUX Mode: Connect external devices via a 3.5mm audio cable (not included).
To switch between modes, short press the M (Mode) button.

Figure 3: Extensive Compatibility. This image highlights the speaker's support for Bluetooth 5.1, AUX input, USB disk playback, and FM radio functionality.
3. Button Functions
Familiarize yourself with the speaker's control buttons:

Figure 4: Key Button Functions. This diagram illustrates the layout and specific functions of each button on the neza S1 speaker, including power, volume, track control, mode switching, and light control.
| Button | Action | Function |
|---|---|---|
| ⏻ (Power) | Long press | Power on/off, Reject calls |
| ⏻ (Power) | Short press | Play/Pause, Answer/Hang up calls |
| V- (Volume Down) | Short press | Volume down |
| V- (Volume Down) | Long press | Previous song |
| M (Mode) | Short press | Mode switching (Bluetooth, FM, USB, AUX) |
| M (Mode) | Long press | Clear pairing information |
| V+ (Volume Up) | Short press | Volume up |
| V+ (Volume Up) | Long press | Next song |
| 💡 (Light) | Short press | Toggle RGB light show |
4. RGB Light Show
The neza S1 features dynamic RGB lights that synchronize with your music, enhancing the listening experience. To activate or deactivate the light show, short press the 💡 (Light) button.

Figure 5: RGB Light Show. This image demonstrates the vibrant and customizable RGB lighting effects of the speaker, which can be toggled with a single button press.
5. Hands-Free Calling
With its built-in microphone, the speaker allows for hands-free calls when connected via Bluetooth.
- Answer Call: Short press the power button (⏻) when a call comes in.
- End Call: Short press the power button (⏻) during a call.
- Reject Call: Long press the power button (⏻) when a call comes in.
Maintenance
1. Waterproofing (IPX7)
The neza S1 speaker is IPX7 waterproof, meaning it can be submerged in up to 1 meter of water for 30 minutes. This makes it suitable for use in showers, by the pool, or during light rain. Ensure the charging port cover is securely closed before exposing the speaker to water.

Figure 6: IPX7 Waterproof Design. This image shows the speaker partially submerged in water, illustrating its robust waterproof capabilities for outdoor and wet environments.
2. Cleaning and Storage
- Clean the speaker with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Ensure the speaker is dry before charging.
- Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not turn on. | Low battery. | Charge the speaker fully. |
| Cannot pair with Bluetooth device. | Speaker not in pairing mode; device Bluetooth off; too far from speaker. | Ensure speaker is flashing blue; turn on device Bluetooth; move device closer (within 100 ft); long press 'M' button to clear pairing info and try again. |
| No sound or low volume. | Volume too low on speaker or device; incorrect mode selected. | Increase volume on both speaker and device; ensure correct play mode (Bluetooth, AUX, USB, FM) is selected. |
| Sound distortion. | Volume too high; low battery; interference. | Reduce volume; charge speaker; move away from other electronic devices. |
| RGB lights not working. | Lights are turned off. | Short press the 💡 (Light) button to toggle them on. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | S1 |
| Brand | neza |
| Speaker Type | 3D |
| Speaker Maximum Output Power | 20 Watts |
| Connectivity Technology | Bluetooth 5.1 |
| Special Features | Built-in Microphone, Colorful Light Show, Immersive Sound Experience, Multiple Play Modes, Waterproof |
| Compatible Devices | Desktop, Laptop, MP3 Player, Smartphone, Tablet |
| Color | Black |
| Battery Life | 18 Hours |
| Product Dimensions | 2.36"D x 2.36"W x 6.6"H |
| Waterproof Rating | IPX7 |
| Item Weight | 1.54 pounds |
| Power Source | Battery Powered (1 Lithium Polymer battery included) |
Warranty and Support
The neza S1 Portable Bluetooth Speaker comes with a Limited Warranty from the manufacturer, neza. Please refer to the warranty card included in your package for specific terms and conditions.
For technical support, troubleshooting assistance, or warranty claims, please contact neza customer service through the retailer where you purchased the product or visit the official neza brand store online.
We recommend retaining your proof of purchase for warranty purposes.




