In depth comparison and review of ISOtunes Free Industrial 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 | ISOtunes Free Industrial | OPPO Enco W31 |
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Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
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Weight | - | 50 g | |
Colour | Safety yellow | Black | White | |
Protection | Dust-resistant, hearing protection, sweat-resistant, water-resistant | Dust-resistant, IP54, water-resistant | |
Recommended Use | Portable electronics | Portable electronics | |
Bluetooth Range (Operating Distance) | - | 10 m |
SOUND QUALITY | ISOtunes Free Industrial | OPPO Enco W31 |
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Headphones Form Factor | In-ear | In-ear | |
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Headphones Technology | - | Dynamic | |
Connectivity Technology | Wireless | Wireless | |
Wireless Technology | Bluetooth | Bluetooth | |
Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.0 | Both headphones have the same Bluetooth version. |
Bluetooth Audio Codec | aptX | AAC | |
Noise Isolating | Yes | - | ISOtunes Free Industrial are equipped with a noise isolating function. |
Sound Output Mode | Stereo | Stereo | |
Frequency Response | - | 20 - 20000 Hz | |
Sensitivity | - | 95 dB | |
Diaphragm | - | Graphene - 7 mm | |
Features | Built-in volume limiter | - |
MICROPHONE | ISOtunes Free Industrial | OPPO Enco W31 |
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Form Factor | Built-in | Built-in | |
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Noise Cancelling | - | Yes | OPPO Enco W31 microphone can cancel out ambient noise. |
Sensitivity | - | -38 dBV/Pascal |
REMOTE CONTROL | ISOtunes Free Industrial | OPPO Enco W31 |
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Controls | - | Next/previous track, voice assistant |
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CABLE | ISOtunes Free Industrial | OPPO Enco W31 |
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Cable Type | - | USB charge cable - detachable |
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FEATURES | ISOtunes Free Industrial | OPPO Enco W31 |
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Sensors | - | Touch sensor |
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BATTERY AND CHARGING | ISOtunes Free Industrial | OPPO Enco W31 |
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Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
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Battery Capacity | - | 25 mAh | |
Battery Life | 7 hour(s) | 3.5 hour(s) | ISOtunes Free Industrial lasts longer on a single charge than the OPPO Enco W31. |
Battery Life Details | Continuous playback: up to 7 hours Continuous playback (with included charging case): up to 21 hours |
Continuous playback (with included charging case): up to 15 hours Continuous playback: up to 3.5 hours |
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Charging Time | 1.5 hour(s) | 2.5 hour(s) | ISOtunes Free Industrial recharge faster than ISOtunes Free Industrial. |
Included Qty | - | 2 |
OTHERS | ISOtunes Free Industrial | OPPO Enco W31 |
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Included Accessories | Charging case, 3 pairs of foam ear tips, 3 pairs of double flange ear tips (small, medium, large), USB-C charging cable | Ear tips kit, USB charge cable, charging case (350 mAh) | |
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Compliant Standards | OSHA, NIOSH | - | |
Service & Support | Limited warranty - 1 year Limited warranty - money back guarantee - 30 days |
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