In depth comparison and review of JVC HA FX39BT Marshmallow and OPPO Enco W31. 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 | JVC HA FX39BT Marshmallow | OPPO Enco W31 |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 28 g | 50 g | JVC HA FX39BT Marshmallow are lighter than JVC HA FX39BT Marshmallow headphones. |
| Colour | Green | White | Black | Black | White | |
| Protection | - | Dust-resistant, IP54, water-resistant | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | JVC HA FX39BT Marshmallow | OPPO Enco W31 |
|---|
| Headphones Form Factor | In-ear - behind-the-neck mount | In-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 3.0 | Bluetooth 5.0 | OPPO Enco W31 have a more advanced version of Bluetooth than JVC HA FX39BT Marshmallow. |
| 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 | |
| Noise Isolating | Yes | - | JVC HA FX39BT Marshmallow are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | - | 95 dB | |
| Diaphragm | 8.5 mm | Graphene - 7 mm | JVC HA FX39BT Marshmallow have a thicker diaphragm than OPPO Enco W31. |
| Magnet Material | Neodymium | - |
| MICROPHONE | JVC HA FX39BT Marshmallow | OPPO Enco W31 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Noise Cancelling | - | Yes | OPPO Enco W31 microphone can cancel out ambient noise. |
| Sensitivity | - | -38 dBV/Pascal |
| REMOTE CONTROL | JVC HA FX39BT Marshmallow | OPPO Enco W31 |
|---|
| Controls | Volume control, play/pause, next/previous track | Next/previous track, voice assistant |
|---|
| CABLE | JVC HA FX39BT Marshmallow | OPPO Enco W31 |
|---|
| Cable Type | USB charge cable | USB charge cable - detachable |
|---|
| FEATURES | JVC HA FX39BT Marshmallow | OPPO Enco W31 |
|---|
| Sensors | - | Touch sensor |
|---|
| BATTERY AND CHARGING | JVC HA FX39BT Marshmallow | OPPO Enco W31 |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 25 mAh | |
| Battery Life | 14 hour(s) | 3.5 hour(s) | JVC HA FX39BT Marshmallow lasts longer on a single charge than the OPPO Enco W31. |
| Battery Life Details | - | Continuous playback (with included charging case): up to 15 hours Continuous playback: up to 3.5 hours |
|
| Charging Time | 3 hour(s) | 2.5 hour(s) | OPPO Enco W31 recharge faster than JVC HA FX39BT Marshmallow. |
| Included Qty | - | 2 |
| CONNECTIONS | JVC HA FX39BT Marshmallow | OPPO Enco W31 |
|---|
| Connector Type | Bluetooth USB |
- |
|---|
| OTHERS | JVC HA FX39BT Marshmallow | OPPO Enco W31 |
|---|
| Included Accessories | 2 pairs of ear tips (small, medium) | Ear tips kit, USB charge cable, charging case (350 mAh) | |
|---|---|---|---|
| Compatibility | iPhone, iPad, iPod, Android phone | - |
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