Side by side comparison and review of Sennheiser HD 2.30i (HD 2.0) and EPOS I SENNHEISER ADAPT 135 USB II. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Sennheiser HD 2.30i (HD 2.0) | EPOS I SENNHEISER ADAPT 135 USB II |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headset - wired - USB, 3.5 mm jack | |
|---|---|---|---|
| Series | HD 2.0 | ADAPT 100 Series | |
| Weight | - | 145.3 g | |
| Colour | Black | Black | |
| Earpad Material | - | Leatherette | |
| Recommended Use | Portable electronics | Portable electronics, computer |
| SOUND QUALITY | Sennheiser HD 2.30i (HD 2.0) | EPOS I SENNHEISER ADAPT 135 USB II |
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| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | - | |
| Connectivity Technology | Wired | Wired | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | EPOS Voice | |
| Frequency Response | 18 - 22000 Hz | 20 - 20000 Hz | Sennheiser HD 2.30i (HD 2.0) offer a larger frequency range than EPOS I SENNHEISER ADAPT 135 USB II. |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Sensitivity | 120 dB | - | |
| Impedance | 22 Ohm | - | |
| Max Sound Pressure | - | 115 dB | |
| Magnet Material | - | Neodymium | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Sennheiser HD 2.30i (HD 2.0) | EPOS I SENNHEISER ADAPT 135 USB II |
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| Type | - | Boom | |
|---|---|---|---|
| Microphone Operation Mode | - | Mono | |
| Noise Cancelling | - | Yes | EPOS I SENNHEISER ADAPT 135 USB II microphone can cancel out ambient noise. |
| Frequency Response | - | 100 - 8000 Hz |
| REMOTE CONTROL | Sennheiser HD 2.30i (HD 2.0) | EPOS I SENNHEISER ADAPT 135 USB II |
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| Controls | - | Volume, answer/end |
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| CABLE | Sennheiser HD 2.30i (HD 2.0) | EPOS I SENNHEISER ADAPT 135 USB II |
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| Cable Type | Headphones cable - 1.4 m | Headset cable | |
|---|---|---|---|
| Cable Length | 1.4 m | - |
| FEATURES | Sennheiser HD 2.30i (HD 2.0) | EPOS I SENNHEISER ADAPT 135 USB II |
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| Features | - | EPOS ActiveGard |
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| CONNECTIONS | Sennheiser HD 2.30i (HD 2.0) | EPOS I SENNHEISER ADAPT 135 USB II |
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| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | Headset (USB Type-A) Headset (mini-phone 3.5mm) |
|---|
| OTHERS | Sennheiser HD 2.30i (HD 2.0) | EPOS I SENNHEISER ADAPT 135 USB II |
|---|
| Included Accessories | Carrying pouch | - | |
|---|---|---|---|
| Compatibility | iPhone, iPad, iPod | - | |
| Software Certification | - | Optimised for UC | |
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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