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Wireless Speakers

Wireless stereo speaker

Stream tunes wirelessly in seconds

Let music flow wirelessly through Bluetooth® to powerful 20W bass-reflex speakers for big sound. Pair devices instantly with NFC or charge fast with a built-in USB. All in one stylish design.

BT4000B/12

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Stream tunes wirelessly in seconds

  • Bluetooth® and NFC
  • Built-in microphone for calls
  • USB port for charging
  • 20W

Bass Reflex Speaker System delivers a powerful, deeper bass

Bass Reflex Speaker System delivers a deep bass experience from a compact loudspeaker box system. It differs from a conventional loudspeaker box system in the addition of a bass pipe that is acoustically aligned to the woofer to optimize the low frequency roll-off of the system. The result is deeper controlled bass and lower distortion. The system works by resonating the air mass in the bass pipe to vibrate like a conventional woofer. Combined with the response of the woofer, the system extends the overall low frequency sounds to create a whole new dimension of deep bass.

20W RMS total output power

This system has 20W RMS total output power. RMS refers to Root Mean Square which is a typical measurement of audio power, or rather, the electrical power transferred from an audio amplifier to a loudspeaker, which is measured in watts. The amount of electrical power delivered to the loudspeaker and its sensitivity determines the sound power that is generated. The higher the wattage, the better the sound power emitted by the speaker.

Anti-clipping function for loud, distortion free music

Anti-Clipping lets you play music louder and keeps it high quality, even when the battery is low. It accepts a range of input signals, from 300mV to 1000mV and keeps your speakers safe from damage by distortion. This built-in function monitors the musical signal as it goes through the amplifier and keeps peaks within the amplifier's range, preventing the audio distortion caused by clipping without affecting loudness. A portable speaker's ability to reproduce musical peaks decreases along with battery power, yet anti-clipping reduces peaks caused by low battery, keeping music distortion free.

Wireless music streaming via Bluetooth

Audio-in for easy portable music playback

One-Touch with NFC-enabled smartphones for Bluetooth pairing

Built-in microphone for hands-free phone calls

USB port to charge any mobile device

Technical Specifications
  • Sound

    Output power (RMS)

    20W

    Sound System

    Stereo

  • Loudspeakers

    Bass reflex speaker system

    Yes

    Speaker drivers

    2 x 2.75"