In depth comparison and review of Sennheiser HD 250BT and Poly Savi 8240-M D2. 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 | Poly Savi 8240-M D2 |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headset | |
|---|---|---|---|
| Weight | 125 g | - | |
| Recommended Use | Portable electronics | - |
| SOUND QUALITY | Sennheiser HD 250BT | Poly Savi 8240-M D2 |
|---|
| Headphones Form Factor | On-ear | - | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Adjustable Headband | Yes | - | |
| Connectivity Technology | Wireless | - | |
| 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 | - | |
| Frequency Response | 20 - 22000 Hz | - | |
| Total Harmonic Distortion (THD) | <0.3% | - | |
| Sensitivity | 110 dB | - | |
| Diaphragm | 32 mm | - | |
| Features | Audio prompts | - |
| MICROPHONE | Sennheiser HD 250BT | Poly Savi 8240-M D2 |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Microphone Technology | Electret condenser | - | |
| Microphone Operation Mode | Omni-directional | - | |
| Frequency Response | 100 - 10000 Hz | - |
| REMOTE CONTROL | Sennheiser HD 250BT | Poly Savi 8240-M D2 |
|---|
| Controls | Volume, on/off, answer/end, hold, play/pause, next/previous track, reject call | - |
|---|
| CABLE | Sennheiser HD 250BT | Poly Savi 8240-M D2 |
|---|
| Cable Type | USB-C charge cable - detachable | - |
|---|
| BATTERY AND CHARGING | Sennheiser HD 250BT | Poly Savi 8240-M D2 |
|---|
| Battery Type | Headphone battery rechargeable | - | |
|---|---|---|---|
| Battery Capacity | 190 mAh | - | |
| Battery Life | 25 hour(s) | - | |
| Charging Time | 3 hour(s) | - |
| OTHERS | Sennheiser HD 250BT | Poly Savi 8240-M D2 |
|---|
| Included Accessories | USB-C charging cable | - | |
|---|---|---|---|
| Compatibility | iPhone, Android phone | - | |
| Compliant Standards | Bluetooth Class 1 | - |
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