Introduction
Welcome to your new ZZB WP-03B Portable Bluetooth Speaker. This manual provides detailed instructions for setup, operation, and maintenance to ensure you get the best experience from your device. The speaker delivers powerful, balanced stereo sound with deep bass, features TWS (True Wireless Stereo) functionality, IPX5 water resistance, and integrated lights for an enhanced audio-visual experience. Its compact design and long 12-hour playtime make it ideal for various indoor and outdoor activities.
What's in the Box
- ZZB WP-03B Portable Bluetooth Speaker
- Power Cable
- User Manual
Product Overview
Familiarize yourself with the speaker's components and controls.

Image: The ZZB WP-03B speaker showcasing its IPX5 water resistance with water splashing around it.

Image: Front view of the ZZB WP-03B speaker, highlighting its compact design and speaker grille.

Image: Side view of the speaker, detailing the control buttons for power, volume, and playback.
Control Buttons and Ports:
- Power Button: Press and hold to turn on/off.
- '+' Button: Press to increase volume; press and hold for next track.
- '-' Button: Press to decrease volume; press and hold for previous track.
- Play/Pause Button: Press to play/pause music, answer/end calls; double-press for TWS pairing.
- Charging Port: USB-C port for charging the speaker.
- AUX-in Port: 3.5mm input for wired audio connection.
- TF-SD Card Slot: For playing music directly from a memory card.

Image: The speaker attached to a backpack, demonstrating its portable design and integrated strap.
Setup
Charging the Speaker
Before initial use, ensure the speaker is fully charged to maximize battery life.
- Connect the provided power cable to the charging port on the speaker.
- 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. It will turn off or change color when fully charged.
Bluetooth Pairing
Connect your speaker wirelessly to your Bluetooth-enabled device.
- Press and hold the Power button to turn on the speaker. A voice prompt or indicator light will confirm it is on.
- The speaker will automatically enter Bluetooth pairing mode, indicated by a flashing LED light.
- On your device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "WP-03B" (or similar model name) from the list of devices.
- Once paired, the speaker will provide an audible confirmation, and the LED light will become solid.

Image: A smartphone displaying a music player interface, wirelessly connected to the ZZB WP-03B speaker.
Operating Instructions
Basic Functions
- Power On/Off: Press and hold the Power button.
- Play/Pause: Press the Play/Pause button once.
- Volume Up: Press the "+" button.
- Volume Down: Press the "-" button.
- Next Track: Press and hold the "+" button.
- Previous Track: Press and hold the "-" button.
- Answer/End Call: Press the Play/Pause button once during an incoming call.
- Reject Call: Press and hold the Play/Pause button during an incoming call.
TWS (True Wireless Stereo) Pairing
To achieve a stereo sound experience, you can pair two WP-03B speakers together.
- Ensure both speakers are powered on and not connected to any Bluetooth device.
- On one speaker (this will be the primary speaker), double-press the Play/Pause button. It will enter TWS pairing mode.
- The two speakers will automatically connect to each other. An audible prompt will confirm successful TWS pairing.
- Once TWS paired, connect your device to the primary speaker via Bluetooth as described in the "Bluetooth Pairing" section.

Image: Two ZZB WP-03B speakers demonstrating TWS pairing for a wider stereo soundstage.
Lighting Effects
The speaker features integrated color lights that automatically synchronize with the beat of the music, enhancing the atmosphere.
AUX-in Mode
Connect non-Bluetooth devices using a 3.5mm audio cable (not included) to the AUX-in port. The speaker will automatically switch to AUX mode.
TF-SD Card Mode
Insert a TF-SD card into the designated slot. The speaker will automatically detect and play audio files from the card.
Maintenance
- Keep the speaker clean by wiping it with a soft, dry cloth.
- Avoid using harsh chemicals or abrasive cleaners.
- Store the speaker in a cool, dry place when not in use.
- Ensure the charging port cover is securely closed to maintain IPX5 water resistance.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not turn on | Low battery | Charge the speaker fully. |
| Cannot pair via Bluetooth | Speaker not in pairing mode / Device Bluetooth off / Too far apart | Ensure speaker is in pairing mode (flashing LED). Turn on Bluetooth on your device. Move speaker and device closer. |
| No sound | Volume too low / Paused / Incorrect source | Increase volume on speaker and device. Press Play. Check if AUX or TF-SD card is inserted. |
| Poor sound quality | Low battery / Obstructions / Too far apart | Charge the speaker. Remove obstructions between speaker and device. Move closer. |
| TWS pairing fails | Speakers already paired to another device / Not in TWS pairing mode | Disconnect speakers from any other Bluetooth devices. Ensure both are in TWS pairing mode. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | WP-03B |
| Brand | ZZB |
| Speaker Type | Portable Speaker |
| Color | Gray |
| Product Dimensions | 1.6"D x 2.9"W x 3"H |
| Item Weight | 6 ounces |
| Waterproof Rating | IPX5 |
| Connectivity Technology | Bluetooth 5.3 |
| Bluetooth Range | Up to 100 Feet |
| Speaker Maximum Output Power | 10 Watts |
| Audio Output Mode | Stereo |
| Battery | 1 Lithium Ion (included) |
| Playtime | Up to 12 hours |
| Included Components | Power Cable |
Warranty and Support
For warranty information or technical support, please refer to the contact details provided on the product packaging or visit the official ZZB website. Keep your purchase receipt for warranty claims.