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The Sennheiser CX 300S in-ear headphones support both Siri and Google Assistant voice control. They're lightweight, have in-line controls, and Sennheiser claims they offer 'amazingly detailed sound reproduction and enhanced bass response'. But did our expert listening panel agree? We sent these headphones to the Which? test lab to find out. Read our full review for the verdict.
pros
cons
What's included?
- What are they?
- How do they sound?
- What are they like to live with?
- Is there anything I should watch out for?
- Is there anything else I should know?
- Should I buy them?
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- Oct 2019First reviewed by Which?
- Feb 2019Released