Introduction
Thank you for choosing the COOPERS Portable Bluetooth Speaker Model WP-05B. This manual provides essential information for the safe and efficient use of your speaker. Please read it thoroughly before operation and retain it for future reference.

The COOPERS WP-05B speaker is designed for portability, making it ideal for outdoor activities and gatherings.
Safety Information
- Do not expose the speaker to extreme temperatures or direct sunlight for prolonged periods.
- Avoid dropping or subjecting the speaker to strong impacts.
- Keep the speaker away from medical devices, as it contains magnets.
- Do not attempt to disassemble, repair, or modify the speaker yourself. Contact qualified service personnel.
- Ensure the charging port cover is securely closed when not charging to maintain IPX5 water resistance.

The speaker features IPX5 water resistance, protecting it from splashes and rain. Ensure the port cover is sealed for optimal protection.
Package Contents
Verify that all items are present in the package:
- COOPERS Portable Bluetooth Speaker WP-05B
- Power Cable (USB-C)
- Quick Start Guide
Product Overview

The COOPERS Portable Bluetooth Speaker Model WP-05B features a durable fabric exterior and intuitive controls on the side.
Controls and Ports
- Power Button: Press and hold to power on/off. Short press to play/pause music.
- Volume Up / Next Track Button: Short press for volume up. Long press for next track.
- Volume Down / Previous Track Button: Short press for volume down. Long press for previous track.
- 'OPEN' Cover: Slide to reveal charging port and AUX-in port.
- USB-C Charging Port: For charging the speaker.
- AUX-in Port: For wired audio connection.
Key Features
- HD Stereo Sound: Delivers clear audio with deep bass.
- RGB Colorful Light Show: Dynamic lighting that pulses with music.
- IPX5 Waterproof: Resistant to splashes and rain.
- Bluetooth 5.3: Stable and fast wireless connection.
- Long Playtime: Equipped with a 4000mAh battery for extended use.
- Portable Design: Lightweight with a built-in lanyard for easy carrying.

Its lightweight design and built-in lanyard allow for easy transport and attachment to bags or bicycles.

Experience powerful 20W sound output with deep bass and clear audio from the speaker's advanced drivers.

The integrated 4000mAh battery provides extended playback, perfect for long outdoor sessions.
Watch this video to see the COOPERS Portable Bluetooth Speaker in action, highlighting its fast connection, waterproof design, and various color options.
Setup
1. Initial Charging
Before first use, fully charge the speaker. Open the 'OPEN' cover on the side to access the USB-C charging port. Connect the provided USB-C cable to the speaker and a compatible USB power adapter (not included). The charging indicator light will show charging status.
2. Powering On/Off
- To Power On: Press and hold the Power button for approximately 3 seconds until you hear an audible prompt and the RGB lights activate.
- To Power Off: Press and hold the Power button for approximately 3 seconds until you hear an audible prompt and the RGB lights turn off.
Operating Instructions
1. Bluetooth Pairing
- Ensure the speaker is powered on and in Bluetooth pairing mode (indicated by a flashing light or audible prompt).
- On your device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "COOPERS WP-05B" from the list.
- Once paired, you will hear a confirmation sound, and the light indicator will change.
- The speaker will automatically reconnect to the last paired device when powered on, if within range.
2. True Wireless Stereo (TWS) Pairing
To achieve 360° stereo sound, you can pair two COOPERS WP-05B 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), double-press the Power button. The speaker will enter TWS pairing mode.
- The two speakers will automatically search for and connect to each other. A confirmation sound will indicate successful TWS pairing.
- Once TWS paired, connect your device to the primary speaker via Bluetooth as described in the Bluetooth Pairing section.

Achieve immersive stereo sound by wirelessly pairing two COOPERS WP-05B speakers together.
3. Controlling Music Playback
- Play/Pause: Short press the Power button.
- Volume Up: Short press the Volume Up button.
- Volume Down: Short press the Volume Down button.
- Next Track: Long press the Volume Up button.
- Previous Track: Long press the Volume Down button.
4. RGB Light Modes
The speaker features multiple RGB light modes. To cycle through the modes or turn the lights off, refer to the Quick Start Guide or experiment with short presses of the dedicated light button (if present) or a combination of existing buttons (e.g., double-press Power button after TWS pairing, or a specific long press on a volume button might control lights).
5. FM Radio
To activate FM radio mode, short press the 'M' (Mode) button if available, or a specific button combination. In FM mode, use the Volume Up/Down buttons to scan for stations. Long press to automatically scan and save available stations. Short press to switch between saved stations.
6. AUX-in Mode
Connect an audio device to the speaker's AUX-in port using a 3.5mm audio cable (not included). The speaker should automatically switch to AUX-in mode. If not, short press the 'M' (Mode) button to select AUX-in mode.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the speaker. Do not use abrasive cleaners or solvents.
- Storage: Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, fully charge the speaker at least once every three months if not in regular use.
Troubleshooting
| Problem | Solution |
|---|---|
| Speaker does not power on. | Ensure the battery is charged. Connect the speaker to a power source using the USB-C cable. |
| Cannot pair via Bluetooth. | Ensure the speaker is in pairing mode. Turn off Bluetooth on other devices to avoid interference. Move the speaker closer to your device. |
| No sound or low volume. | Check the volume levels on both the speaker and your connected device. Ensure the speaker is properly paired. |
| TWS pairing fails. | Ensure both speakers are not connected to any other Bluetooth device. Place speakers close to each other during pairing. |
| RGB lights not working. | Check if the lights are turned off or if a specific mode is selected. Refer to the Quick Start Guide for light control instructions. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | WP-05B |
| Brand | COOPERS |
| Speaker Type | Portable Speaker |
| Connectivity Technology | Bluetooth 5.3, Wi-Fi |
| Audio Output Mode | Stereo |
| Speaker Maximum Output Power | 20 Watts |
| Frequency Response | 20 KHz |
| Waterproof Rating | IPX5 |
| Battery Capacity | 4000mAh (Nonstandard Battery) |
| Product Dimensions | 7.67"D x 3.07"W x 3.07"H |
| Item Weight | 0.58 Kilograms (1.28 pounds) |
| Material | Rubber |
| Mounting Type | Tabletop Mount |
Warranty and Support
The COOPERS Portable Bluetooth Speaker WP-05B comes with a limited warranty. For detailed warranty information or technical support, please refer to the Quick Start Guide included in your package or contact COOPERS customer service through their official channels.





