Sometimes companies make failed products, even Sennheiser

techmoan
4k
sennheiser surrounder
surrounder
sennheiser
surrounder pro
pro-logic
dolby pro-logic
neck speaker
neck
speaker
neck phone
neckphone
surround sound
surround
wearable
retro tech
retro-tech. speakers. bizarre
old
1999
audio
hifi
dsp pro
dsp
gadget
wired
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