Side by side comparison and review of Razer Hammerhead BT and JBL Free II. 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 | JBL Free II |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 28 g | 4.8 g | JBL Free II are lighter than Razer Hammerhead BT headphones. |
| Dimensions & Weight Details | - | Earphone: 4.8 g Charging case: 52 g |
|
| Colour | - | Black | White | |
| Protection | - | Splashproof, IPX4 | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | Razer Hammerhead BT | JBL Free II |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.1 | Bluetooth 5.0 | JBL Free II have a more advanced version of Bluetooth than Razer Hammerhead BT. |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Max Input Power | 10 mW | - | |
| Sensitivity | 116 dB | 100 dB | Razer Hammerhead BT have higher sensitivity than JBL Free II. |
| Impedance | 32 Ohm | 16 Ohm | |
| Max Sound Pressure | - | 95 dB | |
| Diaphragm | 10 mm | 5.6 mm | Razer Hammerhead BT have a thicker diaphragm than JBL Free II. |
| Magnet Material | Neodymium magnet | - | |
| Features | Bluetooth aptX technology | - | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Razer Hammerhead BT | JBL Free II |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Operation Mode | Omni-directional | - | |
| Frequency Response | 300 - 3400 Hz | - | |
| Sensitivity | -42 dB | -38 dBV/Pascal | |
| Signal-To-Noise Ratio | 55 dB | - |
| REMOTE CONTROL | Razer Hammerhead BT | JBL Free II |
|---|
| Controls | Volume, play/pause button, answer/end, next/previous track | - |
|---|
| CABLE | Razer Hammerhead BT | JBL Free II |
|---|
| Cable Type | Headphones cable - 63 cm | USB-C charge cable | |
|---|---|---|---|
| Cable Length | 63 cm | - |
| FEATURES | Razer Hammerhead BT | JBL Free II |
|---|
| Features | - | Touch control |
|---|
| BATTERY AND CHARGING | Razer Hammerhead BT | JBL Free II |
|---|
| Battery Type | Headphone battery lithium polymer | 2 x headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 160 mAh | 55 mAh | Razer Hammerhead BT have a higher battery capacity than JBL Free II. |
| Battery Life | 8 hour(s) | 6 hour(s) | Razer Hammerhead BT lasts longer on a single charge than the JBL Free II. |
| Battery Life Details | - | (with included charging case): up to 24 hours | |
| Charging Time | 2 hour(s) | 2 hour(s) | The charging of both headphones last the same time. |
| Included Qty | - | 2 |
| WIRELESS LINK | Razer Hammerhead BT | JBL Free II |
|---|
| Transmission Range | 10 m | - |
|---|
| OTHERS | Razer Hammerhead BT | JBL Free II |
|---|
| Included Accessories | - | 3 pairs of ear tips (small, medium, large), charging case (650 mAh) | |
|---|---|---|---|
| Compatibility | iPhone, iPad, iPod, Android phone | - |
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