The ACS T15 Universal Fit Monitors trump vastly more expensive rivals and blows away the competition in its price range. Runners will find the small design and superb silicon tips deliver a fit that doesn't slip, frequent travellers will love the noise isolation and the flush finish means some people could even wear them in bed. Build quality is also superb and most of all the sound quality is superb. There are a few minor tweaks we'd make but for the price we really can't complain and the ACS Universal Fit Monitors are a shoo-in for our best in-ear headphones list.
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