Side by side comparison and review of Sennheiser HD 1 In-Ear Wireless and SOUL RUN FREE PRO HD. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Sennheiser HD 1 In-Ear Wireless | SOUL RUN FREE PRO HD |
|---|
| Product Type | Earphones - Bluetooth - wireless - NFC | Earphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | - | 1.7 cm | |
| Width | - | 1.9 cm | |
| Depth | - | 3.2 cm | |
| Weight | - | 15 g | |
| Colour | - | Blue | |
| Earpad Material | - | Memory foam | |
| Protection | - | Waterproof, sweat-resistant | |
| Design | - | Sports | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10.1 m |
| SOUND QUALITY | Sennheiser HD 1 In-Ear Wireless | SOUL RUN FREE PRO HD |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Balanced armature | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.1 | Bluetooth 4.0 EDR | Sennheiser HD 1 In-Ear Wireless have a more advanced version of Bluetooth than SOUL RUN FREE PRO HD. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 15 - 22000 Hz | 20 - 20000 Hz | Sennheiser HD 1 In-Ear Wireless offer a larger frequency range than SOUL RUN FREE PRO HD. |
| Total Harmonic Distortion (THD) | <0.5% | - | |
| Max Sound Pressure | 112 dB | - | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Sennheiser HD 1 In-Ear Wireless | SOUL RUN FREE PRO HD |
|---|
| Type | On-cable | On-cable | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | - | |
| Sensitivity | -44 dBV/Pascal | - |
| REMOTE CONTROL | Sennheiser HD 1 In-Ear Wireless | SOUL RUN FREE PRO HD |
|---|
| Controls | - | Volume control |
|---|
| CABLE | Sennheiser HD 1 In-Ear Wireless | SOUL RUN FREE PRO HD |
|---|
| Cable Type | USB charge cable | USB charge cable - detachable Headphones cable - reflective |
|---|
| BATTERY AND CHARGING | Sennheiser HD 1 In-Ear Wireless | SOUL RUN FREE PRO HD |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | 170 mAh | - | |
| Battery Life | 10 hour(s) | 12 hour(s) | SOUL RUN FREE PRO HD lasts longer on a single charge than the Sennheiser HD 1 In-Ear Wireless. |
| Charging Time | 1.5 hour(s) | - |
| OTHERS | Sennheiser HD 1 In-Ear Wireless | SOUL RUN FREE PRO HD |
|---|
| Included Accessories | Carrying case, 4 pairs of earpads (extra small, small, medium, large) | Carrying case, cable clip, 2 pairs of foam ear tips, 4 pairs of ear tips (XS, small, medium, large), 2 pairs of ear locks | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 1 year |
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