Denver BTB-410NR Stereo Portable Speaker Black

The Denver BTB-410NR Stereo Portable Speaker Black is a compact stereo speaker designed for mobile use and small gatherings. It combines a 12.7 cm driver and a 5.07 cm tweeter to deliver an RMS rated power of 40 W, and offers both wired and wireless connectivity. The unit is powered by a built-in 4000 mAh rechargeable battery and features an LCD display that shows playback and connection information. Its black housing and single-speaker form factor make it a practical choice for indoor and outdoor audio needs.

Advantages

The speaker provides a balanced combination of midrange and treble performance through its larger driver and dedicated tweeter while maintaining portability. With a 4000 mAh internal battery the device supports extended playback away from mains power. Multiple connectivity options, including wireless pairing and wired input, allow straightforward connection to phones, tablets and other audio sources. The integrated LCD display offers clear status feedback for mode, track and battery level.

Suitable for

• Listening to music at home or in small rooms
• Outdoor gatherings and picnics where portable power is required
• Watching videos on a mobile device with improved stereo sound
• Temporary audio for small events or presentations

Key specifications

• Driver size: 12.7 cm
• Tweeter size: 5.07 cm
• RMS rated power: 40 W
• Battery capacity: 4000 mAh (built-in rechargeable)
• Connectivity: wired and wireless options
• Display: LCD
• Colour: Black
• Form factor: portable single-speaker unit

How to use

Charge the built-in 4000 mAh battery using the supplied charging cable until the LCD display indicates full charge. Power the speaker on with the main power control and select the desired input mode on the LCD (Bluetooth or wired). For wireless playback, enable Bluetooth on your source device, locate the speaker in the device list and pair. For wired connections use the appropriate audio cable and the speaker will automatically switch to the wired input. Adjust volume and playback using the controls on the speaker or your connected device. Monitor battery level and mode information on the LCD display during use.

Recommendations

For best battery life, avoid continuous maximum-volume playback and fully charge the unit before extended outdoor use. Place the speaker on a stable flat surface away from moisture and direct sunlight. When pairing via Bluetooth, keep the source device within recommended range for stable connection; when storing the speaker for long periods, charge it periodically to preserve battery health.