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Sennheiser HD 4.40BT Wireless

Over-ear Bluetooth® headphones

31 Reviews | 2 questions - 5 answers

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Item # 143HD440BT

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Expected: 11/26/2018 Reserve risk-free

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Was: $149.99

Price break: -$50.00

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Our take on the Sennheiser HD 4.40BT Wireless

If you're looking for a solid set of Bluetooth headphones from a reputable brand, here's a smart choice. The Sennheiser HD 4.40BT headphones play music wirelessly from your phone and boast up to 25 hours of battery life. They're also comfortable and affordable, and they deliver strong Sennheiser sound with deep bass.

Value-packed wireless headphones

If you're looking for a solid set of Bluetooth headphones from a reputable brand, here's a smart choice. The Sennheiser HD 4.40BT headphones play music wirelessly from your phone and boast up to 25 hours of battery life. They're also comfortable and affordable, and they deliver strong Sennheiser sound with deep bass.

We've carried Sennheiser for so long, I often assume they're a household name. But if you don't know this celebrated headphone maker, they've been at it for over 70 years. So even grabbing a so-called "entry-level" pair of their wireless headphones should promise you good performance.  

My hands-on experience

"I got a chance to try these Sennheiser HD 4.40BT headphones... Light and comfortable. They play quite loud for Bluetooth headphones, so they work well on the go. I thought the powerful bass gave them a lot of energy, and I consider them a strong buy at this price.”

 — Jeff Miller, Crutchfield headphone guy

Comfort and convenience

Personally, I appreciate the modest design of the Sennheiser HD 4.40BT — not too plain, but not too showy, either. I think it's more important that headphones feel good, since you could be wearing them for long periods of time. Their oversized ear cups and well-padded headband help ensure they fit nicely.

And thanks to that built-in Bluetooth, you can keep your phone nearby or in your pocket while you move around freely. You can control your tunes or take phone calls using the tactile buttons on the right earcup.   

Product Highlights:

  • over-the-ear, closed-back design
  • built-in Bluetooth 4.0 for wireless music listening and phone calls
    • aptX® decoding provides high-quality music streaming from compatible devices
    • NFC-compatible for one-touch pairing with compatible devices
  • rechargeable battery provides up to 25 hours of wireless use
  • 32mm drivers deliver clear sound tuned for strong bass
  • earcup buttons offer easy controls for music and calls
    • built-in microphone for phone calls
  • folding design for portability
  • durable headband and soft, ergonomic earpads
  • detachable cable with angled 3.5mm plug for wired listening
  • cloth storage pouch
  • frequency response: 18-22,000 Hz
  • sensitivity: 113 dB
  • impedance: 18 ohms
  • warranty: 2 years
  • Our 60-day money-back guarantee

What's in the Box:

  • Over-ear wireless headphones
  • 58" Audio cable with right-angled 3.5mm plug
  • 42" USB charging cable (Type A USB on one end and Micro-B USB on other end)
  • Soft cloth storage pouch
  • Quick Guide
  • Safety Guide
  • Compliance Information

Featured Video

good sound and build quality, my only complaint is the volume and track buttons are too close together and easily confused

Benjamin, Altamonte Spg, FL


Sennheiser HD 4.40BT Wireless Reviews

Average Customer Review(s):

(31 Reviews)
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Hands-on research

Features and Specs

Fit Style Over-the-ear
Earcup Type Closed
Earcup Width x Height 2.99" x 3.565"
Noise-canceling No
Mic For Taking Calls Yes
iPhone Control Yes
Lightning Connector No
Android Control Yes
Frequency Response 18-22k Hz
Sensitivity Not Given
Impedance 18 Ohms
Weight 7.9 ounces
Cord Length 58"
1/4-inch Adapter Included No
Storage Pouch
Charging Case No
Volume Control Yes
Parts Warranty 2 Years
Labor Warranty 2 Years

Product Research


Overview: The Sennheiser HD 4.40BT over-ear wireless headphones are ideal for every day listening while you're on the go. With built-in Bluetooth, you can pair the headphones to your smart phone or tablet for wireless listening for hours. The headphones come with a USB charging cable, a straight audio cable, and a soft storage pouch.

Bluetooth: The HD 4.40BT headphones are compliant with the Bluetooth 4.0 standard, and are compatible with Bluetooth 1.1 through 4.0 devices with the following profiles: HFP (Hands-Free Profile), HSP (Headset Profile), AVRCP (Audio Video Remote Control Profile), and A2DP (Advanced Audio Distribution Profile). In addition, aptX audio coding provides high quality audio that is comparable to a wired connection. You can pair the headphones with most Apple and Android Bluetooth devices, including those with NFC (Near Field Communication).

Battery: The Bluetooth function is powered by a 3.7-volt 600mAh Lithium-Polymer rechargeable battery. The battery charges in approximately 2 hours using the supplied Micro USB charging cable. A full charge supplies enough power for 25 hours of wireless listening. The remaining battery level can be monitored through the flashing LED and voice prompts. The battery life may also be displayed on the screen of your smartphone or device.

On-board Controls: The HD 4.40BTs have built-in controls on the right ear cup for power, volume, and music/phone call control. Music controls include play/pause, skip to next track, skip to previous track, fast forward, and fast reverse. Phone controls include accept/end a call, reject call, call on hold, and toggle between 2 calls. Established calls can be transferred from the headphones to the smartphone by turning off the Bluetooth connection. Using the Voice Control function of your phone, you can make a call by speaking a command.

Audio Cable: The included 58" audio cable lets you listen to your music when the battery is exhausted, or when you cannot, or choose not to, use Bluetooth. The cable terminates into a slender right-angled 3.5mm plug that is compatible with most smartphone cases. The cable does not have an in-line remote, and the on-board controls do not work when the power is off.


  • Frequency Response: 18 Hz to 22 kHz
  • Impedance: 18 Ω
  • Sound Pressure Level (SPL): 113 dB (1 kHz, 1 Vrms)
  • Total Harmonic Distortion (THD): <0.5 % (1 kHz, 100 dB SPL)
  • Dimensions (Ear Cup): Width 2.99", Height 3.565", Depth 1.878"
  • Weight: 7.9 ounces (8.4 oz. with cable)

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

looking for a pair of wireless headphones that are comfortable and sound good. [ John  Oct 07, 2018 ]
For Christmas present for my husband...and it has aptX capability. [ Amanda  Oct 01, 2018 ]
After reading various reviews these are the best wireless headphones for the $. [ WAdan  Sep 29, 2018 ]
my husband likes it.... [ Sarah Polutan  Jun 07, 2018 ]
I chose this pair of wireless headphones because of Sennheiser quality at a fairly reasonable price [ Paul  Jun 03, 2018 ]
Trusted name, good price [ JEFFREY  May 19, 2018 ]
Research, value [ QualityEngineer  May 04, 2018 ]
This is what my son wanted for Christmas [ Brent  Dec 13, 2017 ]
larger head size than other brands and sale price [ J  Dec 12, 2017 ]
online info [ Martin  Dec 10, 2017 ]
price range.. needed wireless.. trusted brand.. I have HD650 wired..hoping this will be close. ;-) [ Housein  Oct 17, 2017 ]
It was a gift for a friend and it is a great product I heard. [ DARSHANI  Sep 25, 2017 ]
Good reviews [ John  Jul 11, 2017 ]
Sennheiser makes some of the best headphones on the market. When I decided to go wireless, Sennheiser was my first choice. [ VICTORIO  May 19, 2017 ]
Quality of brand and price. [ MARTIN L  Feb 28, 2017 ]
Reasonable price for good quality [ Sangwon  Feb 25, 2017 ]
Read about how great they were at the CES demo [ William  Feb 10, 2017 ]
Price and features [ MATTHEW  Feb 10, 2017 ]

2 questions already asked

You can view the owner's manual (PDF file) from our website: You can also contact an Advisor directly by phone (888.955.6000) or online chat if you'd like to discuss further. Hope that helps! [ Larry  Jul 10, 2018 ]  Staff
Go to the Sennheiser website and search for product manual. It is a pdf and can be downloaded. [ QualityEngineer  Jul 07, 2018 ]
blue tooth pairing very easy [ ROSALINDA  Jul 18, 2017 ]
There is no physical connection necessary with these headphones. They are designed to work with Bluetooth compatable devices; like TV's, cell phones, book readers, music players, ect. I purchased my headphones to use with my Samsung UHD TV. I can stream movies and use the headphone to listen to them without worrying about the sound disturbing otherst. Decide what device you want/need to use the headphones with, then make sure that that device is Bluetooth compatible. [ Ronald  Jul 17, 2017 ]
Hold down the power button until the light keeps flashing blue (about 5 seconds) [ William  Jul 17, 2017 ]