1. Introduction
Thank you for purchasing the Kaiser KSW-3000BK Bluetooth Speaker. This manual provides essential information for the safe and efficient use of your device. Please read it thoroughly before operating the speaker and retain it for future reference.

Image 1.1: Front view of the Kaiser KSW-3000BK Bluetooth Speaker.
2. Safety Information
To ensure safe operation and prevent damage, please observe the following precautions:
- Do not expose the speaker to water or excessive moisture. This product is not waterproof.
- Avoid extreme temperatures, direct sunlight, or dusty environments.
- Do not disassemble, repair, or modify the device. This may void the warranty and pose a safety risk.
- Use only the provided charging cable or a certified equivalent.
- Keep the speaker away from heat sources and open flames.
- Clean the speaker with a soft, dry cloth. Do not use abrasive cleaners or solvents.
3. Package Contents
Verify that all items are present in the package:
- Kaiser KSW-3000BK Bluetooth Speaker
- USB Charging Cable
- 3.5mm Audio (AUX) Cable
- User Manual

Image 3.1: The KSW-3000BK speaker shown with its USB charging cable and 3.5mm AUX audio cable.
4. Product Overview
4.1. Control Panel

Image 4.1: Top panel of the speaker with control buttons.
- M (Mode) Button: Press to switch between Bluetooth, FM Radio, AUX, and USB/Micro SD modes.
- - (Volume Down / Previous Track) Button: Press and hold to decrease volume. Short press to go to the previous track (in Bluetooth/USB/Micro SD mode) or previous station (in FM mode).
- + (Volume Up / Next Track) Button: Press and hold to increase volume. Short press to go to the next track (in Bluetooth/USB/Micro SD mode) or next station (in FM mode).
- Play/Pause / Call Button: Press to play or pause audio. In Bluetooth mode, press to answer or end a call. Press and hold to reject a call. Double-press to redial the last number.
4.2. Rear Ports

Image 4.2: Rear panel of the speaker with various ports.
- ON/OFF Switch: Power switch for the speaker.
- DC5V (Charging Port): Connect the USB charging cable here.
- AUX Input: Connect external audio devices using the 3.5mm audio cable.
- USB Port: Insert a USB flash drive for audio playback.
- TF/Micro SD Card Slot: Insert a Micro SD card for audio playback.
5. Setup
5.1. Charging the Speaker
Before first use, fully charge the speaker. Connect the small end of the USB charging cable to the DC5V port on the speaker and the larger end 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. A full charge takes approximately 2-3 hours and provides up to 5 hours of playback.

Image 5.1: The USB charging cable and 3.5mm AUX cable.
5.2. Powering On/Off
Slide the ON/OFF switch on the rear panel to the 'ON' position to power on the speaker. You will hear an audible prompt, and the display will light up. Slide the switch to the 'OFF' position to power off the speaker.
6. Operating Instructions
6.1. Bluetooth Pairing
- Power on the speaker. It will automatically enter Bluetooth pairing mode, indicated by a flashing 'BLUE' on the display and an audible prompt.
- Enable Bluetooth on your mobile device (smartphone, tablet, laptop).
- Search for available Bluetooth devices and select "KSW-3000BK" from the list.
- Once paired, the speaker will emit an audible confirmation, and 'BLUE' on the display will stop flashing. You can now play audio from your device through the speaker.

Image 6.1: The speaker's display showing 'BLUE' during Bluetooth operation.
6.2. KSR-LINK (True Wireless Stereo) Pairing
To enjoy true wireless stereo sound, you can pair two KSW-3000BK speakers together:
- Ensure both KSW-3000BK speakers are powered on and in Bluetooth mode, but not yet paired to any device.
- On one of the speakers (this will be the primary speaker), press and hold the 'M' (Mode) button for a few seconds until you hear a pairing tone.
- The two speakers will automatically connect to each other. Once connected, you will hear a confirmation tone.
- Now, connect your mobile device to the primary speaker via Bluetooth as described in Section 6.1. Audio will play through both speakers in stereo.
6.3. Using AUX Input
Connect one end of the 3.5mm audio cable to the AUX port on the speaker and the other end to the audio output of your external device (e.g., MP3 player, computer). Press the 'M' button to switch the speaker to AUX mode. Audio will play directly from your connected device.
6.4. Using USB / Micro SD Card
Insert a USB flash drive into the USB port or a Micro SD card into the TF/Micro SD card slot. The speaker will automatically switch to the corresponding mode and begin playing audio files (MP3 format recommended). If it does not switch automatically, press the 'M' button to cycle through modes until USB or TF mode is selected.
6.5. FM Radio
Press the 'M' button to switch to FM Radio mode. For best reception, ensure the USB charging cable is connected, as it acts as an antenna. Press the Play/Pause button once to auto-scan and save available FM stations. Use the '-' and '+' buttons to navigate between saved stations.
6.6. Hands-Free Calling
When connected via Bluetooth to your smartphone, the speaker can be used for hands-free calls:
- Answer/End Call: Press the Play/Pause button once.
- Reject Call: Press and hold the Play/Pause button.
- Redial Last Number: Double-press the Play/Pause button.
7. Maintenance
Proper care ensures the longevity of your speaker:
- Cleaning: Wipe the speaker with a soft, dry, lint-free cloth. Do not use liquid cleaners or aerosols.
- Storage: Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures when not in use for extended periods.
- Battery Care: To maintain battery health, charge the speaker at least once every three months if not used regularly.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not turn on. | Battery is depleted. | Charge the speaker fully. |
| No sound. | Volume is too low; incorrect mode selected; device not paired. | Increase volume; press 'M' to select correct mode; re-pair Bluetooth device. |
| Bluetooth pairing fails. | Speaker is too far from device; speaker is already paired to another device. | Ensure device is within 10 meters; disconnect from other devices; restart speaker and device. |
| Poor FM radio reception. | No antenna connected; weak signal. | Connect the USB charging cable to act as an antenna; try moving to a location with better signal. |
9. Specifications
| Feature | Detail |
|---|---|
| Model | KSW-3000BK |
| Brand | Kaiser |
| Speaker Type | Subwoofer (Active) |
| Audio Power | 5 W RMS |
| Connectivity Technology | Bluetooth, USB, Wi-Fi (KSR-LINK), AUX |
| Bluetooth Range | Up to 10 meters |
| Compatible Devices | Smartphone, Tablet, Laptop, MP3 Player |
| Power Source | Rechargeable Battery (via Electric Cable) |
| Average Battery Life | 5 Hours |
| Control Method | Buttons, Application |
| Product Dimensions | 4.7 cm (Depth) x 32 cm (Width) x 7 cm (Height) |
| Waterproof | No |
| Mounting Type | Tabletop |
10. Warranty and Support
For warranty information or technical support, please refer to the warranty card included with your product or visit the official Kaiser website. Do not attempt to repair the device yourself, as this may void the warranty.