Introduction
The Kimiso KMS-6681 is a versatile portable wireless speaker designed for various audio playback needs, including Bluetooth streaming, MP3 playback via USB or Micro SD, and karaoke functions with an included microphone. This manual provides detailed instructions for the safe and effective use of your device, ensuring you get the most out of its features.
Package Contents
- Kimiso KMS-6681 Portable Wireless Speaker
- Microphone
- Charging Cable (DC 5V)
Product Overview
Familiarize yourself with the speaker's components and controls.

Figure 1: Kimiso KMS-6681 Speaker with Microphones

Figure 2: Top Panel Controls and Ports
Key Components:
- Speaker Grille: Protects the speaker drivers.
- Control Panel (Top): Contains various buttons and ports for operation.
- USB Port: For playing MP3 files from a USB flash drive.
- Micro SD Card Slot: For playing MP3 files from a Micro SD card.
- Line-in (AUX) Port: 3.5mm input for connecting external audio devices.
- DC 5V Charging Port: For connecting the charging cable.
- Microphone Input: For connecting the included microphone.
- Power Button: To turn the speaker on or off.
- Mode Button: To switch between Bluetooth, USB/Micro SD, and AUX modes.
- Volume Controls: To adjust the master volume and potentially microphone volume.
Specifications
| Feature | Specification |
|---|---|
| Model | KMS-6681 |
| Speaker Type | Portable |
| Communication | Bluetooth |
| Playback Function | MP3 |
| Input Power | <25 W |
| Frequency Response | 150Hz-18KHz |
| Signal-to-Noise Ratio (S/N) | 80dB |
| Battery Capacity | 1200 mAh |
| Charging Voltage | DC 5V |
| Weight | 1.0 KG |
| Dimensions (Approximate) | Height: 40 cm, Width: 17 cm |
| Intelligent Personal Assistant | None |

Figure 3: Approximate Speaker Dimensions
Setup
1. Charging the Speaker
- Locate the DC 5V charging port on the top panel of the speaker.
- Connect the provided charging cable to the speaker's charging port and a compatible USB power adapter (not included) or a USB port on a computer.
- The charging indicator (if present) will illuminate, typically red, 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 power on, press and hold the Power button (usually located on the top panel) for a few seconds until you hear an audible prompt or see an indicator light.
- To power off, press and hold the Power button again until the speaker shuts down.
Operating Instructions
1. Bluetooth Mode
- Turn on the speaker. It will typically enter Bluetooth pairing mode automatically, 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-6681" from the list of devices. Once paired, you will hear a confirmation sound, and the LED indicator will stop flashing.
- You can now play audio from your device through the speaker.
2. MP3 Playback (USB/Micro SD)
- Insert a USB flash drive or a Micro SD card (pre-loaded with MP3 audio files) into the respective port on the top panel.
- The speaker should automatically detect the storage device and switch to MP3 playback mode. If not, press the 'Mode' button to cycle through modes until MP3 mode is activated.
- Use the playback controls (e.g., Play/Pause, Next/Previous Track) on the speaker to manage your music.
3. Line-in (AUX) Mode
- Connect one end of a 3.5mm audio cable (not included) to the AUX port on the speaker.
- Connect the other end of the cable to the headphone jack or audio output of your external audio device (e.g., MP3 player, computer).
- Press the 'Mode' button on the speaker until it switches to AUX mode.
- Play audio from your external device. Volume can be controlled via both the speaker and the external device.
4. Karaoke Function
- Connect the included microphone to the microphone input port on the speaker.
- Ensure the microphone's power switch (if applicable) is turned on.
- Play your desired karaoke track via Bluetooth, USB, Micro SD, or AUX mode.
- Adjust the microphone volume and master volume on the speaker to your preference.
Maintenance
Cleaning
- Always power off the speaker before cleaning.
- Use a soft, dry, lint-free cloth to wipe the exterior surfaces of the speaker.
- Do not use abrasive cleaners, waxes, or solvents as they may damage the finish.
- Avoid getting moisture into any openings or ports.
Storage
- Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
- If storing for an extended period, fully charge the battery before storage and recharge it every few months to maintain battery health.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on | Battery is depleted | Connect the speaker to a power source using the charging cable and allow it to charge. |
| No sound from speaker | Volume is too low; Incorrect mode selected; Device not connected properly | Increase speaker and source device volume; Press 'Mode' button to select correct input; Reconnect Bluetooth/AUX cable/USB/Micro SD. |
| Bluetooth device cannot pair | Speaker not in pairing mode; Bluetooth disabled on device; Device too far | Ensure speaker is in Bluetooth mode and indicator is flashing; Enable Bluetooth on your device; Move device closer to speaker (within 10 meters); Try unpairing and re-pairing. |
| Microphone not working | Microphone not connected; Microphone switch off; Volume too low | Ensure microphone is securely plugged into its port; Turn on the microphone's power switch; Increase microphone volume on the speaker. |
| MP3 files not playing | Incorrect file format; USB/Micro SD card not inserted correctly; Corrupted files | Ensure files are in MP3 format; Reinsert USB/Micro SD card; Try a different USB/Micro SD card with known good files. |
User Tips
- For optimal sound quality, ensure the speaker is placed on a stable surface and not obstructed.
- Keep the speaker charged to avoid interruptions during use, especially for longer sessions.
- When using the microphone, maintain a suitable distance to prevent feedback (squealing sound).
Warranty and Support
This product is covered by a standard manufacturer's warranty against defects in materials and workmanship. For warranty claims or technical support, please refer to the seller's contact information or the platform where the product was purchased. Keep your proof of purchase for any warranty-related inquiries.





