The Sennheiser HD 4.40  Bluetooth Headphones Should Be On Your List

Meet the Sennheiser HD 4.40 Bluetooth headphones. The Sennheiser HD 4.4 around ear Bluetooth wireless headphones offer exceptional sound for every day listening with mobile devices. The closed-back, around-ear headset is powered by proprietary Sennheiser drivers that deliver amazingly detailed sound with dynamic bass.

Sennheiser HD 4.40 Bluetooth Headphones

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Product Features:

    • Deep full size closed-back earcups provide excellent comfort and isolation
    • AptX Bluetooth 4.0 connectivity for clean wireless transmission
    • Good sound quality with detailed mids & smooth treble
    • Solid punchy bass response
    • Foldable travel-ready design
    • Hard-sided carrying case
    • Up to 25 hours of battery life using Bluetooth
    • Quick pairing with all NFC devices
    • Includes headphone cable for optional wired use

Sennheiser HD 4.40 Bluetooth Headphones Design

The first thing you’ll notice about the Sennheiser HD 4.4 BT headphones is their design, and like the HD 4.50 BTNC headphones, they look really good. They’re not exactly the same as their more expensive counterpart, doing away with the silver highlights in favor of an all black design, but they’re still clearly made by the same manufacturer.

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The HD 4.40 BT’s over-the-ear, closed back design is available in a matte black finish thatwe found rather appealing. While the earpads are plush and exceptionally comfortable, we felt that the headband could use a little more padding as on longer listening periods the lack of padding became apparent.

On the right earcup’s side panel, there are various buttons, including the power button, which also places the headphones in Bluetooth pairing mode (there’s also an NFC zone on the left earcup for compatible devices). Near the power button, there’s also a button/switch that operates playback and track navigation by either pressing or pushing the switch forward or backward—this button also manages phone calls and summons voice controls on your phone. Near this button, there’s a dedicated volume rocker, which works in conjunction with your mobile device’s master volume levels. All of these controls are intuitive and are very simply laid out.

The right earcup also houses a connection for the included 3.5mm audio cable. It’s great that Sennheiser includes a cable, though we wish it had an inline remote control and mic. When the cable is connected, it kills Bluetooth pairing and the headphones immediately power down. The right ear is also where the micro USB charging cable connects.

Sennheiser has a free app you can use called CapTune. The app lets you adjust EQ, but the headphones sound pretty excellent without without it. Think of it as an optional free extra that in no way detracts from the experience, but also doesn’t add much.

The headphones include dual omnidirectional mics for better clarity on calls and when using voice controls. In our tests, the mics offered above-average intelligibility—using the Voice Memos app on an iPhone 6s, we were able to clearly understand every word we recorded. However, the mics can sound a little far away and there’s still a hint of Bluetooth audio degradation. But overall, the audio quality is in the higher tier of wireless headphone mics we’ve tested.

The Sennheiser HD 4.40 Bluetooth Headphones estimated battery life is roughly 25 hours, but your results will vary with your volume levels. In addition to the charging and audio cables, the headphones ship with a black drawstring carrying pouch.


You just will not be disappointed with the HD 4.40 headphones. These are a comfortable, portable, streamlined headphone that rocks the bass. It’s not a reference headphone. Your music is not going to sound “exactly as it did in the studio”. But it is the kind of sound that a lot of people are looking for in a headphone. Something intense and fun. Grab a set today.

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