In depth comparison and review of Bang & Olufsen Beoplay H4 and EPOS I SENNHEISER ADAPT 135 USB 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 H4 | EPOS I SENNHEISER ADAPT 135 USB II |
|---|
| Product Type | Headphones - Bluetooth - wireless - 3.5 mm jack | Headset - wired - USB, 3.5 mm jack | |
|---|---|---|---|
| Series | - | ADAPT 100 Series | |
| Height | 22 cm | - | |
| Width | 19.4 cm | - | |
| Depth | 5 cm | - | |
| Weight | 235 g | 145.3 g | EPOS I SENNHEISER ADAPT 135 USB II are lighter than Bang & Olufsen Beoplay H4 headphones. |
| Colour | Black | Charcoal grey | Sandstone | Tangerine | Violet | Black | |
| Body Material | Stainless steel, aluminium | - | |
| Earpad Material | Leather | Leatherette | |
| Headband Material | Leather | - | |
| Recommended Use | Portable electronics | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | Bang & Olufsen Beoplay H4 | EPOS I SENNHEISER ADAPT 135 USB II |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | - | |
| Adjustable Headband | Yes | - | |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 4.2 | - | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | EPOS Voice | |
| Frequency Response | 20 - 22000 Hz | 20 - 20000 Hz | Bang & Olufsen Beoplay H4 offer a larger frequency range than EPOS I SENNHEISER ADAPT 135 USB II. |
| Sensitivity | 91 dB/mW | - | |
| Impedance | 20 Ohm | - | |
| Max Sound Pressure | - | 115 dB | |
| Diaphragm | 40 mm | - | |
| Magnet Material | - | Neodymium | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Bang & Olufsen Beoplay H4 | EPOS I SENNHEISER ADAPT 135 USB II |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Technology | Electret condenser | - | |
| Microphone Operation Mode | Omni-directional | Mono | |
| Noise Cancelling | - | Yes | EPOS I SENNHEISER ADAPT 135 USB II microphone can cancel out ambient noise. |
| Frequency Response | - | 100 - 8000 Hz | |
| Audio Input Details | Omni-directional | - |
| REMOTE CONTROL | Bang & Olufsen Beoplay H4 | EPOS I SENNHEISER ADAPT 135 USB II |
|---|
| Controls | Volume, answer/end, play/pause, next/previous track, pair mode | Volume, answer/end |
|---|
| CABLE | Bang & Olufsen Beoplay H4 | EPOS I SENNHEISER ADAPT 135 USB II |
|---|
| Cable Type | Headphones cable - braided fabric - 1.25 m | Headset cable | |
|---|---|---|---|
| Cable Length | 1.25 m | - |
| FEATURES | Bang & Olufsen Beoplay H4 | EPOS I SENNHEISER ADAPT 135 USB II |
|---|
| Features | - | EPOS ActiveGard |
|---|
| BATTERY AND CHARGING | Bang & Olufsen Beoplay H4 | EPOS I SENNHEISER ADAPT 135 USB II |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | - | |
|---|---|---|---|
| Battery Capacity | 600 mAh | - | |
| Battery Life | 19 hour(s) | - | |
| Charging Time | 2.5 hour(s) | - |
| WIRELESS LINK | Bang & Olufsen Beoplay H4 | EPOS I SENNHEISER ADAPT 135 USB II |
|---|
| Transmission Range | 10 m | - |
|---|
| CONNECTIONS | Bang & Olufsen Beoplay H4 | EPOS I SENNHEISER ADAPT 135 USB II |
|---|
| Connector Type | Headphones (mini-phone 3.5mm) | Headset (USB Type-A) Headset (mini-phone 3.5mm) |
|---|
| OTHERS | Bang & Olufsen Beoplay H4 | EPOS I SENNHEISER ADAPT 135 USB II |
|---|
| Included Accessories | USB charging cable (25cm) | - | |
|---|---|---|---|
| Software Certification | - | Optimised for UC | |
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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