Side by side comparison and review of Sennheiser HD 1 In-Ear Wireless and ifrogz FreeRein 2. 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 | ifrogz FreeRein 2 |
|---|
| Product Type | Earphones - Bluetooth - wireless - NFC | Earphones - Bluetooth - wireless | |
|---|---|---|---|
| Colour | - | White | Black | Purple | Red | |
| Protection | - | Sweat-resistant, water-resistant | |
| Design | - | Sports | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | Sennheiser HD 1 In-Ear Wireless | ifrogz FreeRein 2 |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.1 | - | |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 15 - 22000 Hz | - | |
| Total Harmonic Distortion (THD) | <0.5% | - | |
| Max Sound Pressure | 112 dB | - | |
| Diaphragm | - | 8 mm | |
| Magnet Material | - | Neodymium | |
| Features | - | Magnetic ear buds |
| MICROPHONE | Sennheiser HD 1 In-Ear Wireless | ifrogz FreeRein 2 |
|---|
| Type | On-cable | On-cable | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | - | |
| Sensitivity | -44 dBV/Pascal | - |
| REMOTE CONTROL | Sennheiser HD 1 In-Ear Wireless | ifrogz FreeRein 2 |
|---|
| Controls | - | Volume |
|---|
| CABLE | Sennheiser HD 1 In-Ear Wireless | ifrogz FreeRein 2 |
|---|
| Cable Type | USB charge cable | - |
|---|
| BATTERY AND CHARGING | Sennheiser HD 1 In-Ear Wireless | ifrogz FreeRein 2 |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | 170 mAh | - | |
| Battery Life | 10 hour(s) | 5 hour(s) | Sennheiser HD 1 In-Ear Wireless lasts longer on a single charge than the ifrogz FreeRein 2. |
| Charging Time | 1.5 hour(s) | - |
| OTHERS | Sennheiser HD 1 In-Ear Wireless | ifrogz FreeRein 2 |
|---|
| Included Accessories | Carrying case, 4 pairs of earpads (extra small, small, medium, large) | 3 pairs of ear tips | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 1 year |
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