The Sennheiser CX 400BT are no ordinary pair of mid-range wireless earbuds. Their balanced, detailed sound, excellent comfort and myriad of features ensure they stand out in a crowded market.

They’re not the most glamorous nor the most distinctive – but Sennheiser’s new CX400BT true wireless earbuds have it where it counts. They sound open and articulate, and if there’s detail in a recording to be extracted, you can rely on them to do just that.

The Sennheiser CX 400BT earphones deliver some of the best on-ear controls and audio performance you'll find in a true wireless pair.

The excellent sounding CX 400BT True Wireless earbuds are a more affordable alternative to the Momentum True Wireless II.

The Sennheiser CX 400BT is a really solid mid-range set of TWS earphones, but bargain hunters may want to find something else if ANC is important to them. Still, having high-end audio hardware at a mid-range price point is a good bargain in our opinion.

They're fairly comfortable and very portable, but they struggle to cut down bass-heavy noise like bus or plane engines. Their roughly five hours of continuous battery life also may not be long enough to get you through a long flight. That said, they're well-built and their carrying case offers around two additional charges.

While slightly compromised in the features department, the CX 400BT are sonic marvels – and, at this price, hugely appealing