IK Multimedia iLoud Sub (IK Multimedia) (Subwoofer) (with calibration system) (Island/Island Sub) (DTM) Cowbell and it is easy to

and it is easy to operate

Each piece is carefully hammered by hand by artisans from a special alloy that has been passed down through generations

- 4 AA alkaline batteries

so please wash them separately from other items

IK Multimedia iLoud Sub (IK Multimedia) (Subwoofer) (with calibration system) (Island/Island Sub) (DTM) Cowbell and it is easy to[Product Features] Accurate low frequencies for perfect studio sound iLoud Sub redefines what you've always thought of as a subwoofer. It delivers deep, precise, and perfectly controlled low end in one of the smallest enclosures on the market. Pair it with any speaker, including the iLoud series, to create a studio quality monitoring setup. iLoud Sub is the only subwoofer that automatically calibrates the entire system, regardless of monitor