Portable Radios
HKDAZZLYN 21cm Underseat Car Subwoofer 600W Active Subwoofer with Built-in Amplifier, 12V Car Audio Speaker Underseat CarAudio for Any Vehicle, Black
600W Power: Rated at 200W, and up to 600W, the powerful output brings you deep and resonant bass! The ultra-wide response frequency (40-200Hz) and bass enhancement (0-12dB), combined with a signal-to-noise ratio of ≥ 90dB and a total harmonic...
https://www.bizrate.co.uk/portableradios/hkdazzlyn-21cm-underseat-car-subwoofer-oid38512385795.html