Mono portable speaker Gembird SPK-BT-15-BK — 5 W RMS, Bluetooth, MicroSD, 1200 mAh, black

The Gembird SPK-BT-15-BK is a compact mono portable speaker designed for simple and reliable audio playback. With a 5 W RMS output and a frequency response of 100–20,000 Hz, it reproduces speech and music for personal and outdoor use. The speaker supports Bluetooth wireless connection up to 10 m, wired input and MicroSD playback for standalone use. A built-in 1200 mAh rechargeable battery provides extended listening time, while the small footprint and 0.305 kg weight make it easy to carry.

Advantages

This black portable speaker combines wireless Bluetooth connectivity and MicroSD card support, allowing playback without a paired device. The single 5 W driver balances compact size with sufficient volume for personal listening and small gatherings. Battery and DC power options increase flexibility for mobile use and indoor charging. Physical dimensions of 116 x 93 x 93 mm and low weight make the unit convenient to transport and store.

Suitable for

• Personal listening at home, in the office or on the go
• Outdoor activities such as picnics and small gatherings
• Mobile audio playback from Bluetooth devices or MicroSD cards
• Use with devices that require a simple wired audio input

Key specifications

• Output power: 5 W RMS
• Frequency response: 100–20,000 Hz
• Signal-to-noise ratio: 85 dB
• Wireless range: Bluetooth up to 10 m
• Battery capacity: 1200 mAh (rechargeable)
• MicroSD support: up to 32 GB for direct playback
• Power source: battery and DC charging
• Number of speakers: mono (1 driver)
• Product colour: black
• Dimensions: 116 x 93 x 93 mm
• Weight: 0.305 kg

How to use

Charge the speaker via the provided DC input before first use. To play audio wirelessly, enable Bluetooth on your source device, search for available devices and pair with the speaker within a 10 m range. For direct playback from a memory card, insert a MicroSD card (up to 32 GB) into the card slot and use the speaker's controls to start playback. A wired audio source can be connected through the audio input when Bluetooth is not available. Adjust volume and playback using the controls on the unit or the connected device.

Recommendations

For optimal battery life, fully charge the speaker before extended use and avoid leaving the battery at low charge for long periods. Use stable surfaces and keep the speaker protected from moisture and extreme temperatures to maintain sound performance and longevity.