In depth comparison and review of Sennheiser HD 4.40 and Poly SupraPlus H261N-CD. 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 | Poly SupraPlus H261N-CD |
|---|
| Product Type | Headphones - Bluetooth - wireless - NFC | Headset - wired - Quick Disconnect | |
|---|---|---|---|
| Series | - | Controller and Dispatch |
| SOUND QUALITY | Sennheiser HD 4.40 | Poly SupraPlus H261N-CD |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Ear Cups Type | Closed | - | |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 4.0 | - | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 18 - 22000 Hz | - | |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Sensitivity | 113 dB | - | |
| Impedance | 18 Ohm | - |
| MICROPHONE | Sennheiser HD 4.40 | Poly SupraPlus H261N-CD |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Operation Mode | Omni-directional | Mono | |
| Frequency Response | 100 - 10000 Hz | - | |
| Microphones Included | 2 | - |
| CABLE | Sennheiser HD 4.40 | Poly SupraPlus H261N-CD |
|---|
| Cable Type | - | Headset cable |
|---|
| BATTERY AND CHARGING | Sennheiser HD 4.40 | Poly SupraPlus H261N-CD |
|---|
| Battery Type | Headphone battery lithium polymer | - |
|---|
| CONNECTIONS | Sennheiser HD 4.40 | Poly SupraPlus H261N-CD |
|---|
| Connector Type | - | Headset (Quick Disconnect) |
|---|
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