In depth comparison and review of SteelSeries Siberia 840 and EPOS I SENNHEISER ADAPT 135T USB-C II. 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 | SteelSeries Siberia 840 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Product Type | Headset - Bluetooth - wireless | Headset - wired - 3.5 mm jack, USB-C | |
|---|---|---|---|
| Series | - | ADAPT 100 Series | |
| Weight | 318 g | 145.3 g | EPOS I SENNHEISER ADAPT 135T USB-C II are lighter than SteelSeries Siberia 840 headphones. |
| Colour | Glossy, matte black | Black | |
| Earpad Material | - | Leatherette | |
| Recommended Use | Game console, phone, computer | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | SteelSeries Siberia 840 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | 7.1 Channel Virtual Surround Sound | EPOS Voice | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 100 dB | - | |
| Max Sound Pressure | - | 115 dB | |
| Diaphragm | 40 mm | - | |
| Magnet Material | Neodymium | Neodymium | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | SteelSeries Siberia 840 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Type | Boom | Boom | |
|---|---|---|---|
| Microphone Operation Mode | - | Mono | |
| Noise Cancelling | - | Yes | EPOS I SENNHEISER ADAPT 135T USB-C II microphone can cancel out ambient noise. |
| Frequency Response | 100 - 10000 Hz | 100 - 8000 Hz | SteelSeries Siberia 840 offer a larger microphone frequency range than EPOS I SENNHEISER ADAPT 135T USB-C II. |
| Audio Input Details | Uni-directional | - | |
| Sensitivity | -44 dB | - | |
| Impedance | 2.2 kOhm | - | |
| Microphone Features | Mute function | - |
| REMOTE CONTROL | SteelSeries Siberia 840 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Controls | - | Volume, answer/end |
|---|
| CABLE | SteelSeries Siberia 840 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Cable Type | Audio (optical) cable USB cable RCA cable Audio cable |
Headset cable |
|---|
| FEATURES | SteelSeries Siberia 840 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Features | - | EPOS ActiveGard |
|---|
| BATTERY AND CHARGING | SteelSeries Siberia 840 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Battery Type | Headset battery rechargeable - Lithium Ion | - | |
|---|---|---|---|
| Battery Capacity | 1000 mAh | - | |
| Battery Life | 20 hour(s) | - | |
| Included Qty | 2 | - |
| WIRELESS LINK | SteelSeries Siberia 840 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Transmission Range | 10 m | - |
|---|
| CONNECTIONS | SteelSeries Siberia 840 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Connector Type | Headset Headphones USB |
Headset (USB Type-C) Headset (mini-phone 3.5mm) |
|---|
| OTHERS | SteelSeries Siberia 840 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Included Accessories | Transmitter unit, 4 power plug adapters, 2 battery packs, mobile cable, chat cable | - | |
|---|---|---|---|
| Software Included | SteelSeries Engine 3 | - | |
| Software Certification | - | Certified for Microsoft Teams, Optimised for UC | |
| Service & Support | - | Limited warranty - 2 years |
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