Portable Bluetooth karaoke speaker MANTA SPK0803B140 140W, battery-powered, MIC/USB/microSD, FM, equalizer, wheels

The MANTA SPK0803B140 is a portable 140 W Bluetooth speaker with built-in battery, extendable handle and wheels, designed for mobile playback and karaoke. It supports wireless Bluetooth streaming, FM radio and playback from USB or microSD, and includes a wireless microphone and microphone priority function for karaoke use. The speaker features an equalizer to adjust high and low tones and offers multiple input slots including MIC, USB, microSD and guitar.

Advantages

The unit delivers powerful 140 W output suitable for parties and small events while remaining easy to transport thanks to its extendable handle and wheels. Bluetooth pairing allows quick wireless connection to phones and tablets, and the built-in battery provides up to 4 hours of operation for outdoor or mobile use. Additional features include recording, FM radio and support for common audio formats (MP3, WMA, WAV).

Suitable for

• Home parties and gatherings
• Karaoke sessions and small performances
• Outdoor or mobile events where battery-powered sound is needed
• Presentations or events requiring a portable PA with microphone input

Key specifications

• Power output: 140 W
• Power supply: AC 110–240 V, 50/60 Hz + built-in 12 V battery
• Battery life: up to 4 hours
• Frequency response: 40–18,000 Hz
• Playback formats: MP3, WMA, WAV
• Slots/inputs: MIC, USB, microSD, guitar, AUX
• Dimensions (HxWxD): 61 x 36 x 35 cm
• Included accessories: remote control, wireless microphone, power cable, AUX cable

How to use

Connect the speaker to mains power (AC 110–240 V) to charge the internal battery or rely on the built-in 12 V battery for mobile use. Pair your smartphone or tablet via Bluetooth for wireless playback, or insert a USB stick or microSD card with supported audio files (MP3, WMA, WAV). Use the equalizer to adjust treble and bass to your preference. Plug in a microphone or guitar into the corresponding input for karaoke or live performance, and use the microphone priority function to give vocal input precedence over background music.

Recommendations

For best battery life, fully charge the speaker before mobile use. Position the speaker on a stable surface and avoid exposing it to moisture. When using the microphone priority function for karaoke, set volume levels gradually to prevent distortion and feedback.