The Bose 301 Music Monitor II (often referred to as the 301 Series II) is an iconic, passive bookshelf speaker introduced by Bose in the 1980s. The speaker is known for its unique Direct/Reflecting technology, in which sound reflects through walls to mimic a wide, spacious live experience. Specs : System: 2-way bass reflex (asymmetrically mirrored pair for left and right) speakers have a single 8-inch woofer (20 cm) and two 3-inch (7.6 cm) high-sensitivity tweeters (placed in a Free Space array) that are drivers per speaker. Power: At least 10 watts to maximum 75 watts RMS per channel Impedance: 8 Ohms Dimensions: 27 x 43 x 24 cm (H x W x D) Pictures are all original of this lot and part of description!