Side by side comparison and review of Sennheiser HD 2.30i 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 | 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 | ADAPT 100 Series | |
| Weight | 262 g | 145.3 g | EPOS I SENNHEISER ADAPT 135 USB II are lighter than Sennheiser HD 2.30i headphones. |
| Colour | Black | White | Black | |
| Earpad Material | Leatherette | Leatherette | |
| Recommended Use | Portable electronics | Portable electronics, computer |
| SOUND QUALITY | Sennheiser HD 2.30i | EPOS I SENNHEISER ADAPT 135 USB II |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | Closed | - | |
| Foldable | Yes | - | Sennheiser HD 2.30i can be folded. |
| 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 offer a larger frequency range than EPOS I SENNHEISER ADAPT 135 USB II. |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Sensitivity | 115 dB/Vrms | - | |
| Impedance | 22 Ohm | - | |
| Max Sound Pressure | 115 dB | 115 dB | |
| Magnet Material | - | Neodymium | |
| In-Cord Volume Control | Yes | Yes |
| MICROPHONE | Sennheiser HD 2.30i | EPOS I SENNHEISER ADAPT 135 USB II |
|---|
| Type | On-cable | Boom | |
|---|---|---|---|
| Microphone Operation Mode | Mono, omni-directional | 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 | EPOS I SENNHEISER ADAPT 135 USB II |
|---|
| Controls | Volume, answer/end, play/pause | Volume, answer/end |
|---|
| CABLE | Sennheiser HD 2.30i | EPOS I SENNHEISER ADAPT 135 USB II |
|---|
| Cable Type | Headphones cable - 1.4 m | Headset cable | |
|---|---|---|---|
| Cable Length | 1.4 m | - | |
| Detachable Cable | Yes | - |
| FEATURES | Sennheiser HD 2.30i | EPOS I SENNHEISER ADAPT 135 USB II |
|---|
| Features | - | EPOS ActiveGard |
|---|
| CONNECTIONS | Sennheiser HD 2.30i | EPOS I SENNHEISER ADAPT 135 USB II |
|---|
| 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 | EPOS I SENNHEISER ADAPT 135 USB II |
|---|
| Compatibility | iPhone | - | |
|---|---|---|---|
| Software Certification | - | Optimised for UC | |
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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