The Antari FT-20XS-B Power Base is a battery power accessory for the FT-20X fog machine. It is designed to provide a battery-based power solution for the compatible unit. The power base has dimensions of 280 x 109 x 125 mm, corresponding to 28 cm in length, 10.9 cm in width, and 12.5 cm in height. The manufacturer identifies the unit as part of the FT-20X product range.