Just upgraded to the Bass Module 700 from the 500 sub for my Bose SoundTouch 300 (older Soundbar 700) 🤯 : r/Soundbars
BOSE 796145-4100 Bass Module 500 Subwoofer User Guide - Manuals+
See Notes Bose 425843 Bass Module 500 Subwoofer Wireless Connection Black for sale online | eBay
Amazon.com: Bose bass Module 500 Sound Subwoofer, Black & Bose TV Speaker Soundbar, Bluetooth Black : Everything Else
Bose Soundbar 700 + Bass Module 500 (White bar/Black Sub) Powered sound bar and subwoofer system with Wi-Fi®, Bluetooth®, and voice control at Crutchfield
Bose Soundbar 500 with Bass Module 500 System Bundle Model T2H2P4 17817793766 | eBay