Bose SoundTouch 300 Soundbar 767520-1100 B&H Photo Video
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SoundXtra TV Mount Attachment Custom mount attachment for Bose® SoundTouch® 300 soundbar at Crutchfield
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Amazon.com: Soundbass Universal Bose Under TV Mounting Attachment, White, Compatible with Soundbar 300/500/600/700/900 TV Speaker Soundtouch 300 - Invisible Once Fitted, Fast & Easy Way to Mount Your Sound bar : Electronics