Introduction
Thank you for purchasing the Denver KMS-20B Karaoke Speaker. This manual provides essential information for the safe and efficient operation of your device. Please read these instructions carefully before use and retain them for future reference.
Important Safety Information
- Do not expose the device to rain, moisture, or extreme temperatures.
- Avoid dropping or subjecting the device to strong impacts.
- Do not attempt to disassemble or repair the device yourself. Refer all servicing to qualified personnel.
- Keep the device away from heat sources and direct sunlight.
- Use only the specified charging cable and power adapter.
- Dispose of batteries responsibly according to local regulations.
Package Contents
Ensure all items are present in the package:
- Denver KMS-20B Karaoke Speaker
- Quick Start Guide
- Power Cable (USB Type A)
Product Overview
Familiarize yourself with the components and controls of your Denver KMS-20B Karaoke Speaker.
Figure 1: Front View. This image displays the main body of the karaoke speaker, featuring the microphone grille at the top and the central control panel with various buttons for playback and volume adjustments.
Figure 2: Control Panel Detail. A closer look at the control panel, highlighting buttons such as PREV, NEXT, PAUSE/PLAY, VOL+, VOL-, MIC, MIC VOL, and REMIX. The power button is also visible.
Figure 3: Bottom Ports. This image shows the bottom section of the speaker handle, revealing the charging port (5V 0.5A), a USB port, and a 3.5mm headphone jack for external connections.
Control Panel Functions:
- Power Button: Press and hold to turn the speaker ON/OFF.
- PAUSE/PLAY: Press to play or pause music.
- PREV (Previous): Press to go to the previous track.
- NEXT: Press to go to the next track.
- VOL+ (Volume Up): Press to increase the speaker volume.
- VOL- (Volume Down): Press to decrease the speaker volume.
- MIC: Press to activate/deactivate the microphone.
- MIC VOL (+/-): Adjusts the microphone volume.
- REMIX: Activates/deactivates the echo effect for the microphone.
Ports:
- Charging Port (5V 0.5A): For charging the internal battery.
- USB Port: For playing music from a USB flash drive.
- 3.5mm Headphone Jack: For connecting headphones or external audio devices.
Setup
1. Charging the Speaker
- Connect the provided power cable to the charging port (5V 0.5A) on the speaker.
- Connect the other end of the cable to a compatible USB power adapter (not included) or a USB port on a computer.
- The charging indicator (if present) will illuminate during charging and turn off or change color when fully charged.
- Allow approximately 2-3 hours for a full charge before first use.
2. Powering On/Off
- To turn ON: Press and hold the Power button until the indicator light illuminates and you hear an audible prompt.
- To turn OFF: Press and hold the Power button again until the indicator light turns off and you hear an audible prompt.
3. Bluetooth Pairing
- Ensure the speaker is powered on. It will automatically enter Bluetooth pairing mode, indicated by a flashing LED light and an audible prompt.
- On your mobile device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "KMS-20B" from the list of found devices.
- Once successfully paired, the LED indicator will stop flashing, and you will hear a confirmation sound.
- The speaker will automatically connect to the last paired device when powered on, if it is within range and Bluetooth is enabled.
Operating Instructions
Music Playback (Bluetooth/USB)
- Bluetooth: After successful pairing, start playing music on your connected device. The audio will stream through the KMS-20B speaker.
- USB: Insert a USB flash drive containing MP3 audio files into the USB port. The speaker will automatically detect and begin playing music from the drive.
- PAUSE/PLAY: Press this button to pause or resume music playback.
- PREV/NEXT: Press these buttons to skip to the previous or next track.
- VOL+/VOL-: Press these buttons to adjust the main speaker volume.
Microphone Usage
- Activating Microphone: Press the MIC button to turn on the microphone function. Press it again to turn off.
- Microphone Volume: Use the MIC VOL (+/-) buttons to increase or decrease the microphone's output volume.
- Echo Effect (REMIX): Press the REMIX button to activate or deactivate the echo effect for your voice. This adds a reverberation effect, common in karaoke.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the speaker. Do not use abrasive cleaners or solvents.
- Storage: When not in use for extended periods, 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, even if not in regular use.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not turn on. | Low battery. | Charge the speaker fully. |
| Cannot pair via Bluetooth. | Bluetooth is off on your device; speaker is not in pairing mode; too far from device. | Ensure Bluetooth is enabled on your device. Power cycle the speaker to enter pairing mode. Move device closer to speaker (within 10 meters). |
| No sound from speaker. | Volume too low; device not connected; incorrect input source. | Increase speaker and device volume. Ensure Bluetooth is connected or USB is properly inserted. |
| Microphone not working. | Microphone function is off; MIC VOL is too low. | Press the MIC button to activate. Increase MIC VOL. |
Specifications
- Model: KMS-20B
- Brand: Denver
- Connectivity: Bluetooth, USB Type A, 3.5mm Jack
- Power Source: Battery-Powered
- Battery Type: Lithium-ion (Rechargeable)
- Charging Input: 5V 0.5A (via USB Type A)
- Dimensions: 7.8 x 7.8 x 23 cm (approx. 3.07 x 3.07 x 9.06 inches)
- Weight: 340 g (approx. 0.75 lbs)
- Included Components: Quick Start Guide, Power Cable
Warranty and Support
For warranty information and technical support, please refer to the warranty card included with your product or visit the official Denver website. Keep your purchase receipt as proof of purchase.
