In depth comparison and review of Bang & Olufsen Beoplay H9 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 | Bang & Olufsen Beoplay H9 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headset - wired - 3.5 mm jack, USB-C | |
|---|---|---|---|
| Series | - | ADAPT 100 Series | |
| Height | 22.5 cm | - | |
| Width | 19.7 cm | - | |
| Depth | 4 cm | - | |
| Weight | 285 g | 145.3 g | EPOS I SENNHEISER ADAPT 135T USB-C II are lighter than Bang & Olufsen Beoplay H9 headphones. |
| Colour | Argilla grey | Black | Black | |
| Body Material | Anodised aluminium | - | |
| Earpad Material | Leather | Leatherette | |
| Recommended Use | Portable electronics | Portable electronics, computer |
| SOUND QUALITY | Bang & Olufsen Beoplay H9 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Adjustable Headband | Yes | - | |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 4.2 | - | |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Bluetooth Audio Codec | AAC, aptX | - | |
| Active Noise Cancelling | Yes | - | Bang & Olufsen Beoplay H9 are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | Signature Sound | EPOS Voice | |
| Frequency Response | 20 - 22000 Hz | 20 - 20000 Hz | Bang & Olufsen Beoplay H9 offer a larger frequency range than EPOS I SENNHEISER ADAPT 135T USB-C II. |
| Sensitivity | 93 dB/mW | - | |
| Impedance | 20 Ohm | - | |
| Max Sound Pressure | - | 115 dB | |
| Diaphragm | 40 mm | - | |
| Magnet Material | - | Neodymium | |
| Features | Bluetooth aptX technology | - | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Bang & Olufsen Beoplay H9 | EPOS I SENNHEISER ADAPT 135T USB-C II |
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| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Technology | Electret condenser | - | |
| Microphone Operation Mode | Omni-directional | Mono | |
| Noise Cancelling | - | Yes | EPOS I SENNHEISER ADAPT 135T USB-C II microphone can cancel out ambient noise. |
| Frequency Response | - | 100 - 8000 Hz |
| REMOTE CONTROL | Bang & Olufsen Beoplay H9 | EPOS I SENNHEISER ADAPT 135T USB-C II |
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| Controls | Volume, answer/end, play/pause, next/previous track, noise-cancellation suspend button | Volume, answer/end |
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| CABLE | Bang & Olufsen Beoplay H9 | EPOS I SENNHEISER ADAPT 135T USB-C II |
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| Cable Type | Headphones cable - detachable - 1.2 m | Headset cable |
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| FEATURES | Bang & Olufsen Beoplay H9 | EPOS I SENNHEISER ADAPT 135T USB-C II |
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| Features | - | EPOS ActiveGard |
|---|
| BATTERY AND CHARGING | Bang & Olufsen Beoplay H9 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Battery Type | Headphone battery rechargeable | - | |
|---|---|---|---|
| Battery Capacity | 770 mAh | - | |
| Battery Life | 21 hour(s) | - | |
| Battery Life Details | Continuous playback (noise cancelling ON / Bluetooth): up to 14 hours Continuous playback (noise cancelling OFF): up to 16 hours Continuous playback (noise cancelling ON / cable connection): up to 21 hours |
- | |
| Charging Time | 2.5 hour(s) | - |
| CONNECTIONS | Bang & Olufsen Beoplay H9 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) | Headset (USB Type-C) Headset (mini-phone 3.5mm) |
|---|
| OTHERS | Bang & Olufsen Beoplay H9 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Included Accessories | Carrying pouch, airplane adapter, micro-USB charging cable (30cm) | - | |
|---|---|---|---|
| Software Certification | - | Certified for Microsoft Teams, Optimised for UC | |
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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