 |  | |
| Available colors | ||
| Editiorial reviews | ||
| User rating |
 Sennheiser HD 4.50 BTNC Wireless |  Sennheiser PXC 550 Wireless | |
|---|---|---|
| Sound output | Stereo | Stereo |
| Style | Over-Ear | Over-Ear |
| Headset (integrated/enclosed microphone) | yes | yes |
| Sennheiser HD 4.50 BTNC Wireless | Sennheiser PXC 550 Wireless | |
|---|---|---|
| Colour of product |
|
|
| Acoustic design | Closed | Closed |
| Attachment type | Headband | Headband |
| Foldable | yes | yes |
| Sennheiser HD 4.50 BTNC Wireless | Sennheiser PXC 550 Wireless | |
|---|---|---|
| Weight | 8.4 oz | 8.01 oz |
| Sennheiser HD 4.50 BTNC Wireless | Sennheiser PXC 550 Wireless | |
|---|---|---|
| Impedance | 18.0 Ω | 490.0 Ω |
| Sensitivity | < 113 | < 110 |
| Frequency range | 18 - 28000 | 17 - 23000 |
| Driver technology | Dynamic | Dynamic |
| Total harmonic distortion (THD) | 0.5 % | 0.5 % |
| Sennheiser HD 4.50 BTNC Wireless | Sennheiser PXC 550 Wireless | |
|---|---|---|
| Cable length | 1.4 | 1.25 |
| 3.5 mm/6.3 mm adapter included | no | yes |
| Audio streaming via bluetooth |
|
|
| Bluetooth version | 4.0 | 4.2 |
| Bluetooth profile | APT-X |
|
| Bluetooth codec |
|
|
| Wireless connection | Bluetooth | Bluetooth |
| Wireless range | 10 | 10 |
| Type of connector | 3.5mm | 3.5mm |
| USB | no | yes |
| Type of USB connector | Micro-USB | Micro-USB |
| Detachable cable | yes | yes |
| Multi Point connection | no | yes |
| Sennheiser HD 4.50 BTNC Wireless | Sennheiser PXC 550 Wireless | |
|---|---|---|
| Noise-canceling | yes | yes |
| Buttons |
|
|
| NFC | yes | yes |
| Sennheiser HD 4.50 BTNC Wireless | Sennheiser PXC 550 Wireless | |
|---|---|---|
| Battery operated | yes | yes |
| Battery life | 25.0 h | 30.0 h |
| Talk time | 25.0 h | 30.0 h |
| Charging via USB | yes | yes |
| Pros | ||
|---|---|---|
| Cons |
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