Amazon.co.jp: Bose Bass Module 500 Base Module 10 x 10 x 9.4 inches (25.7 x 25.7 x 23.8 cm), 11.0 lbs (5 kg) | Connect to Bose Smart Soundbar 900/700/ 500/300 / Bose TV Speaker and SoundTouch 300 : Electronics
Bose Bass Module 500 vs. 700: Worth the Extra Money? - Swift Moves