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Beats Solo 4 review: Upgraded audio, extended battery life and familiar design

Beats made significant updates to audio quality and battery life on the Solo 4, but the design is in need of a refresh.

$200 at Apple Beats says it re-engineered the audio on the Solo 4 for “incredible, high-fidelity acoustics.” This includes new, custom-built 40mm transducers that it says offer “extraordinary clarity and range” due to minimal latency and distortion. The slight changes to the ear pads definitely help make it more comfortable, but it’s still too snug a fit for me.Clearly, though, the Solo line is a hit: Beats says it has sold over 40 million pairs of these on-ear cans. The company also made tweaks to modernize it, including the switch to USB-C. Small changes to the ear pads make the Solo 4 more comfortable for those of us with big heads, but the fit is still far from ideal.

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