Side by side comparison and review of Razer Hammerhead BT and SOUL RUN FREE PRO. 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 | Razer Hammerhead BT | SOUL RUN FREE PRO |
|---|
| Product Type | Earphones - Bluetooth - wireless | Headset - Bluetooth - wireless | |
|---|---|---|---|
| Height | - | 3.2 cm | |
| Width | - | 1.8 cm | |
| Depth | - | 1.8 cm | |
| Weight | 28 g | 17 g | SOUL RUN FREE PRO are lighter than Razer Hammerhead BT headphones. |
| Colour | - | Black | |
| Protection | - | Waterproof | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | 10 m | The maximum operating distance of both headphones is the same. |
| SOUND QUALITY | Razer Hammerhead BT | SOUL RUN FREE PRO |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.1 | Bluetooth 4.0 EDR | Razer Hammerhead BT have a more advanced version of Bluetooth than SOUL RUN FREE PRO. |
| 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 | 20 - 20000 Hz | - | |
| Max Input Power | 10 mW | - | |
| Sensitivity | 116 dB | - | |
| Impedance | 32 Ohm | - | |
| Diaphragm | 10 mm | - | |
| Magnet Material | Neodymium magnet | - | |
| Features | Bluetooth aptX technology | - | |
| In-Cord Volume Control | Yes | Yes |
| MICROPHONE | Razer Hammerhead BT | SOUL RUN FREE PRO |
|---|
| Type | On-cable | On-cable | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | Mono | |
| Frequency Response | 300 - 3400 Hz | - | |
| Sensitivity | -42 dB | - | |
| Signal-To-Noise Ratio | 55 dB | - |
| REMOTE CONTROL | Razer Hammerhead BT | SOUL RUN FREE PRO |
|---|
| Controls | Volume, play/pause button, answer/end, next/previous track | Volume, volume control, play/pause button, answer/end, play/pause, next/previous track |
|---|
| CABLE | Razer Hammerhead BT | SOUL RUN FREE PRO |
|---|
| Cable Type | Headphones cable - 63 cm | USB charge cable Headset cable - 57.5 cm |
|
|---|---|---|---|
| Cable Length | 63 cm | - |
| BATTERY AND CHARGING | Razer Hammerhead BT | SOUL RUN FREE PRO |
|---|
| Battery Type | Headphone battery lithium polymer | Headset battery rechargeable | |
|---|---|---|---|
| Battery Capacity | 160 mAh | - | |
| Battery Life | 8 hour(s) | 8 hour(s) | Both headphones last the same amount of time on a single charge. |
| Standby Time | - | 240 hours | |
| Charging Time | 2 hour(s) | 2 hour(s) | The charging of both headphones last the same time. |
| WIRELESS LINK | Razer Hammerhead BT | SOUL RUN FREE PRO |
|---|
| Transmission Range | 10 m | 10 m | The transmission range of both headphones is the same. |
|---|
| OTHERS | Razer Hammerhead BT | SOUL RUN FREE PRO |
|---|
| Included Accessories | - | Carrying case, cable clip, 3 pairs of ear tips (small, medium, large) | |
|---|---|---|---|
| Compatibility | iPhone, iPad, iPod, Android phone | - | |
| Service & Support | - | Limited warranty - 1 year |
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