 |  | |
| Available colors | ||
| Editiorial reviews | ||
| User rating |
 Sennheiser HD1 |  Westone UM PRO 20 | |
|---|---|---|
| Sound output | Stereo | Stereo |
| Style | Over-Ear | In-Ear |
| Connectivity technology | Wired & Wireless | Wired |
| Headset (integrated/enclosed microphone) | yes | yes |
| Sennheiser HD1 | Westone UM PRO 20 | |
|---|---|---|
| Colour of product |
|
|
| Acoustic design | Closed | Closed |
| Attachment type | Headband | Ear canal |
| Sennheiser HD1 | Westone UM PRO 20 | |
|---|---|---|
| Weight | 0.56 oz | 0.45 oz |
| Sennheiser HD1 | Westone UM PRO 20 | |
|---|---|---|
| Impedance | 28.0 Ω | 27.0 Ω |
| Sensitivity | < 113 | < 119 |
| Frequency range | 16 - 22000 | 20 - 18000 |
| Driver technology | Dynamic | Balanced |
| Sennheiser HD1 | Westone UM PRO 20 | |
|---|---|---|
| Cable length | 1.4 | 1.3 |
| USB | yes | no |
| Detachable cable | yes | yes |
| Sennheiser HD1 | Westone UM PRO 20 | |
|---|---|---|
| Noise-canceling | yes | no |
| NFC | yes | no |
| Carrying case | yes | no |
| Pros | ||
|---|---|---|
| Cons |
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