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Sennheiser Customer Service
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What should I do if I only get sound in one side of the headphones or have general sound quality issues?
Why are my headphones are not charging (intermittent charging light)?
How do I disable the flashing LED indicator light?
How do I set up the RS 120 wireless headphones?
How do I get sound from BOTH the TV and headphones at the same time?
Help Desk Software