In depth comparison and review of Sennheiser HD 250BT and EPOS I SENNHEISER ADAPT 165 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 | Sennheiser HD 250BT | EPOS I SENNHEISER ADAPT 165 II |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headset - wired - 3.5 mm jack | |
|---|---|---|---|
| Series | - | ADAPT 100 Series | |
| Weight | 125 g | 145.3 g | Sennheiser HD 250BT are lighter than Sennheiser HD 250BT headphones. |
| Colour | - | Black | |
| Earpad Material | - | Leatherette | |
| Recommended Use | Portable electronics | Portable electronics, computer |
| SOUND QUALITY | Sennheiser HD 250BT | EPOS I SENNHEISER ADAPT 165 II |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | - | |
| Adjustable Headband | Yes | - | |
| Foldable | - | Yes | EPOS I SENNHEISER ADAPT 165 II can be folded. |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 5.0 | - | |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Bluetooth Audio Codec | SBC, AAC, aptX, apt-X LL | - | |
| Noise Isolating | Yes | - | Sennheiser HD 250BT are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | EPOS Voice | |
| Frequency Response | 20 - 22000 Hz | 20 - 20000 Hz | Sennheiser HD 250BT offer a larger frequency range than EPOS I SENNHEISER ADAPT 165 II. |
| Total Harmonic Distortion (THD) | <0.3% | 55% | Sennheiser HD 250BT have lower total harmonic distortion than Sennheiser HD 250BT. |
| Sensitivity | 110 dB | - | |
| Max Sound Pressure | - | 115 dB | |
| Diaphragm | 32 mm | - | |
| Magnet Material | - | Neodymium | |
| Features | Audio prompts | - |
| MICROPHONE | Sennheiser HD 250BT | EPOS I SENNHEISER ADAPT 165 II |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Technology | Electret condenser | - | |
| Microphone Operation Mode | Omni-directional | - | |
| Noise Cancelling | - | Yes | EPOS I SENNHEISER ADAPT 165 II microphone can cancel out ambient noise. |
| Frequency Response | 100 - 10000 Hz | 100 - 8000 Hz | Sennheiser HD 250BT offer a larger microphone frequency range than EPOS I SENNHEISER ADAPT 165 II. |
| REMOTE CONTROL | Sennheiser HD 250BT | EPOS I SENNHEISER ADAPT 165 II |
|---|
| Controls | Volume, on/off, answer/end, hold, play/pause, next/previous track, reject call | - |
|---|
| CABLE | Sennheiser HD 250BT | EPOS I SENNHEISER ADAPT 165 II |
|---|
| Cable Type | USB-C charge cable - detachable | Headset cable - 1.12 m | |
|---|---|---|---|
| Cable Length | - | 1.12 m |
| FEATURES | Sennheiser HD 250BT | EPOS I SENNHEISER ADAPT 165 II |
|---|
| Features | - | EPOS ActiveGard |
|---|
| BATTERY AND CHARGING | Sennheiser HD 250BT | EPOS I SENNHEISER ADAPT 165 II |
|---|
| Battery Type | Headphone battery rechargeable | - | |
|---|---|---|---|
| Battery Capacity | 190 mAh | - | |
| Battery Life | 25 hour(s) | - | |
| Charging Time | 3 hour(s) | - |
| CONNECTIONS | Sennheiser HD 250BT | EPOS I SENNHEISER ADAPT 165 II |
|---|
| Connector Type | - | Headset (mini-phone 3.5mm) |
|---|
| OTHERS | Sennheiser HD 250BT | EPOS I SENNHEISER ADAPT 165 II |
|---|
| Included Accessories | USB-C charging cable | - | |
|---|---|---|---|
| Compatibility | iPhone, Android phone | - | |
| Compliant Standards | Bluetooth Class 1 | - | |
| Service & Support | - | Limited warranty - 2 years |
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