The TWS Sweet Spot

Sennheiser CX 400BT

- Raymond Lau

AT A GLANCE

DRIVERS 7mm dynamic

FREQUENCY RESPONSE 5Hz – 21kHz

BLUETOOTH 5.1

CODECS SBC, AAC, APTX

BATTERY 7 hours (earbud) + 13 hours (case)

PRICE $299

When we reviewed the Sennheiser Momentum True Wireless 2 (MTW2), we called it “almost perfect”, but points were docked for its unimpressive active noise cancellation and high price point.

With the CX 400BT, Sennheiser took direct aim at those complaints by… removing them entirely. The venerable audio brand’s first pair of mid-range true wireless earbuds come without ANC and drops several other features to achieve a more palatable price point of $299, which is $150 cheaper than the MTW2.

Sennheiser makes one simple but noteworthy promise: an identical acoustical system to the MTW2 using the same 7mm dynamic drivers.

Unlike the premium look and feel of the fabric clad MTW2, the CX 400BT sports a more vanilla plastic aesthetic that can easily be mistaken for any other generic true wireless earbuds if not for the clear Sennheiser logo stamped on each bud.

As the glossy plastic doubles as touch controls, it will start to attract your finger’s oil and dirt almost immediately. Similar to the MTW2, Sennheiser also lets you customizer the touch controls on the CX 400BT through its companion mobile app, which is a great plus.