Introduction
Thank you for purchasing the SYLVANIA SP667-BLACK 16" Long Cube Bluetooth Speaker. This manual provides essential information for the safe and efficient operation of your new speaker. Please read it thoroughly before use and retain it for future reference.
This speaker offers versatile audio playback options including Bluetooth wireless technology, FM radio, SD card playback, and a 3.5mm auxiliary input. It also features a built-in microphone for hands-free calling.
Safety Information
- Do not expose the speaker to extreme temperatures, direct sunlight, or high humidity.
- Avoid dropping or subjecting the speaker to strong impacts.
- Do not disassemble, repair, or modify the unit yourself. Refer all servicing to qualified personnel.
- Keep the speaker away from water and other liquids.
- Use only the provided or recommended charging cables and accessories.
- Clean the speaker only with a soft, dry cloth. Do not use liquid cleaners or aerosols.
- Ensure proper ventilation when operating the speaker.
Package Contents
Please check the package for the following items:
- SYLVANIA SP667-BLACK 16" Long Cube Bluetooth Speaker
- USB Charging Cable
- Auxiliary Audio Cable (3.5mm)
- User Manual (this document)
Product Overview
Familiarize yourself with the various parts of your SYLVANIA SP667-BLACK speaker.

Figure 1: Front view of the SYLVANIA SP667-BLACK 16" Long Cube Bluetooth Speaker. The speaker is cylindrical with a black mesh grille covering the main body and a silver SYLVANIA logo badge centrally located. The ends are rounded and dark grey.
Key components typically include:
- Power Button: Turns the speaker on/off.
- Mode Button: Switches between Bluetooth, FM Radio, SD Card, and AUX modes.
- Play/Pause Button: Controls audio playback and answers/ends calls.
- Volume Up/Next Track Button: Increases volume or skips to the next track.
- Volume Down/Previous Track Button: Decreases volume or skips to the previous track.
- USB Charging Port: For charging the internal battery.
- AUX Input (3.5mm): For connecting external audio devices.
- SD Card Slot: For playing music from an SD card.
- LED Indicator: Shows power and connection status.
Setup
Charging the Speaker
- Connect the small end of the supplied USB charging cable to the USB Charging Port on the speaker.
- Connect the large end of the USB charging cable to a USB power adapter (not included) or a computer's USB port.
- The LED indicator will illuminate to show charging status. It will typically turn off or change color when fully charged.
- A full charge provides several hours of music playback.
Powering On/Off
- To power on, press and hold the Power Button for a few seconds until you hear an audible prompt or the LED indicator lights up.
- To power off, press and hold the Power Button again for a few seconds until the speaker powers down.
Operating Instructions
Bluetooth Pairing
- Ensure the speaker is powered on and in Bluetooth mode. If not, press the Mode Button until you hear the Bluetooth prompt. The LED indicator will flash, indicating it's ready for pairing.
- Enable Bluetooth on your mobile device (smartphone, tablet, etc.).
- Search for available Bluetooth devices. The speaker will appear as "SYLVANIA SP667-BLACK" or similar.
- Select the speaker from the list to connect. Once paired, you will hear a confirmation sound, and the LED indicator will stop flashing and remain solid.
- You can now play audio from your device through the speaker.
- Note: The Bluetooth range is approximately 32.8 feet (10 meters). Obstacles may reduce this range.
FM Radio Operation
- Press the Mode Button to switch to FM Radio mode.
- To auto-scan and save available stations, press and hold the Play/Pause Button. The speaker will scan and store stations automatically.
- Use the Volume Up/Next Track Button and Volume Down/Previous Track Button to navigate between saved stations.
SD Card Playback
- Insert an SD card with MP3 audio files into the SD Card Slot.
- The speaker will automatically switch to SD card mode and begin playing the first track. If not, press the Mode Button to select SD card mode.
- Use the Play/Pause Button to pause or resume playback.
- Use the Volume Up/Next Track Button and Volume Down/Previous Track Button to skip tracks.
AUX Input Operation
- Connect one end of the supplied 3.5mm auxiliary audio cable to the AUX Input 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).
- The speaker will automatically switch to AUX mode. If not, press the Mode Button to select AUX mode.
- Control playback and volume directly from your connected audio device.
Hands-Free Calling
- When connected via Bluetooth to your smartphone, the speaker can be used for hands-free calls.
- Answering a Call: Press the Play/Pause Button once to answer an incoming call.
- Ending a Call: Press the Play/Pause Button once during a call to end it.
- Rejecting a Call: Press and hold the Play/Pause Button for a few seconds to reject an incoming call.
- Redialing Last Number: Double-press the Play/Pause Button to redial the last number called.
Maintenance
- Cleaning: Use a soft, dry, lint-free cloth to clean the speaker's exterior. Do not use abrasive cleaners, waxes, 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, avoid fully discharging the battery frequently. Charge the speaker regularly, even if not in use.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Battery is low or depleted. | Charge the speaker using the supplied USB cable. |
| No sound from speaker. | Volume is too low; Incorrect mode selected; Device not connected properly. | Increase speaker and device volume; Press Mode Button to select correct input; Re-pair Bluetooth or re-connect AUX cable. |
| Bluetooth pairing fails. | Speaker is not in pairing mode; Device Bluetooth is off; Speaker is too far from device. | Ensure speaker is in Bluetooth pairing mode (flashing LED); Turn on Bluetooth on your device; Move speaker closer to device (within 32.8 ft). |
| FM radio reception is poor. | Weak signal; Interference. | Relocate the speaker to an area with better reception; Try auto-scanning again. |
| SD card not playing. | SD card not inserted correctly; Incompatible file format; Corrupted files. | Re-insert SD card firmly; Ensure files are in MP3 format; Try a different SD card or reformat the current one. |
Specifications
| Model Name: | 16" Long Cube Bluetooth Speaker (Black) |
| Model Number: | SP667-BLACK |
| Brand: | SYLVANIA |
| Connectivity Technology: | Bluetooth, AUX (3.5mm), SD Card |
| Bluetooth Range: | Up to 32.8 ft (10 meters) |
| Speaker Output Power: | 5W x 2 (Total 10W) |
| Battery Capacity: | 1200 mAh Lithium Ion |
| Power Source: | Battery Powered (Rechargeable via USB) |
| Material: | ABS, Acrylonitrile Butadiene Styrene, Fabric |
| Product Dimensions: | 43.43 x 8.64 x 8.38 cm (17.1 x 3.4 x 3.3 inches) |
| Item Weight: | 880 g (1.94 lbs) |
| Included Components: | Speaker, USB charging cable, auxiliary audio cable |
Warranty and Support
For warranty information and customer support, please refer to the warranty card included with your purchase or visit the official SYLVANIA website. Keep your proof of purchase for warranty claims.
For further assistance, you may contact SYLVANIA customer service through their official channels. Please have your model number (SP667-BLACK) and purchase date ready.
Note: Product specifications and features are subject to change without notice.







