In depth comparison and review of Sennheiser HD 4.40 and Sennheiser ACCENTUM Wireless. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | Sennheiser HD 4.40 | Sennheiser ACCENTUM Wireless |
|---|
| Product Type | Headphones - Bluetooth - wireless - NFC | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | - | 222 g | |
| Colour | - | Black |
| SOUND QUALITY | Sennheiser HD 4.40 | Sennheiser ACCENTUM Wireless |
|---|
| Headphones Form Factor | Full size | Full size binaural | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | Closed | - | |
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.0 | Bluetooth 5.2 | Sennheiser ACCENTUM Wireless have a more advanced version of Bluetooth than Sennheiser HD 4.40. |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Generic Attribute Profile (GATT) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX HD, mSBC, CVSD | |
| Active Noise Cancelling | - | Yes | Sennheiser ACCENTUM Wireless are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Hybrid ANC | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 18 - 22000 Hz | 10 - 22000 Hz | Sennheiser ACCENTUM Wireless offer a larger frequency range than Sennheiser HD 4.40. |
| Total Harmonic Distortion (THD) | 0.5% | 0.3% | Sennheiser ACCENTUM Wireless have lower total harmonic distortion than Sennheiser HD 4.40. |
| Sensitivity | 113 dB | 106 dB | Sennheiser HD 4.40 have higher sensitivity than Sennheiser ACCENTUM Wireless. |
| Impedance | 18 Ohm | - | |
| Diaphragm | - | 37 mm |
| MICROPHONE | Sennheiser HD 4.40 | Sennheiser ACCENTUM Wireless |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | Beamforming | |
| Frequency Response | 100 - 10000 Hz | 50 - 8000 Hz | Sennheiser HD 4.40 offer a larger microphone frequency range than Sennheiser ACCENTUM Wireless. |
| Microphones Included | 2 | - |
| CABLE | Sennheiser HD 4.40 | Sennheiser ACCENTUM Wireless |
|---|
| Cable Type | - | USB-C charge cable - detachable |
|---|
| BATTERY AND CHARGING | Sennheiser HD 4.40 | Sennheiser ACCENTUM Wireless |
|---|
| Battery Type | Headphone battery lithium polymer | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 800 mAh | |
| Battery Life | - | 50 hour(s) | |
| Charging Time | - | 3 hour(s) |
| WIRELESS LINK | Sennheiser HD 4.40 | Sennheiser ACCENTUM Wireless |
|---|
| Modulation Type | - | GFSK, 8-DPSK, 4-DQPSK | |
|---|---|---|---|
| Radio Frequency Range | - | 2.402 - 2.480GHz |
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