In depth comparison and review of Sennheiser HD 4.40 and Audio-Technica ATH-DSR9BT. 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 | Audio-Technica ATH-DSR9BT |
|---|
| Product Type | Headphones - Bluetooth - wireless - NFC | Headphones - Bluetooth - wireless - NFC | |
|---|---|---|---|
| Weight | - | 310 g | |
| Earpad Material | - | Foam | |
| Headband Material | - | Leather | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Sennheiser HD 4.40 | Audio-Technica ATH-DSR9BT |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | Closed | - | |
| Adjustable Headband | - | Yes | |
| Foldable | - | Yes | Audio-Technica ATH-DSR9BT can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.0 | Bluetooth 4.2 | Audio-Technica ATH-DSR9BT 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) | |
| Sound Output Mode | Stereo | Stereo | |
| Built-in Decoders | - | Pure Digital Drive | |
| Frequency Response | 18 - 22000 Hz | 5 - 45000 Hz | Audio-Technica ATH-DSR9BT offer a larger frequency range than Sennheiser HD 4.40. |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Sensitivity | 113 dB | 97 dB/mW | Sennheiser HD 4.40 have higher sensitivity than Audio-Technica ATH-DSR9BT. |
| Impedance | 18 Ohm | 38 Ohm | |
| Diaphragm | - | 45 mm | |
| Features | - | Bluetooth aptX technology |
| MICROPHONE | Sennheiser HD 4.40 | Audio-Technica ATH-DSR9BT |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Technology | - | Condenser | |
| Microphone Operation Mode | Omni-directional | Omni-directional | |
| Frequency Response | 100 - 10000 Hz | 50 - 4000 Hz | Sennheiser HD 4.40 offer a larger microphone frequency range than Audio-Technica ATH-DSR9BT. |
| Sensitivity | - | -44 dB | |
| Microphones Included | 2 | - |
| REMOTE CONTROL | Sennheiser HD 4.40 | Audio-Technica ATH-DSR9BT |
|---|
| Controls | - | Volume, microphone on/off |
|---|
| CABLE | Sennheiser HD 4.40 | Audio-Technica ATH-DSR9BT |
|---|
| Cable Type | - | USB charge cable - 2 m |
|---|
| BATTERY AND CHARGING | Sennheiser HD 4.40 | Audio-Technica ATH-DSR9BT |
|---|
| Battery Type | Headphone battery lithium polymer | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Life | - | 15 hour(s) | |
| Standby Time | - | 1000 hours | |
| Charging Time | - | 5 hour(s) |
| WIRELESS LINK | Sennheiser HD 4.40 | Audio-Technica ATH-DSR9BT |
|---|
| Transmission Range | - | 10 m |
|---|
| OTHERS | Sennheiser HD 4.40 | Audio-Technica ATH-DSR9BT |
|---|
| Included Accessories | - | Hard case | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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