In depth comparison and review of ISOtunes Free Industrial and Soundcore Liberty 4. 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 | Soundcore Liberty 4 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | - | 55 g | |
| Colour | Safety yellow | Midnight black | |
| Protection | Dust-resistant, hearing protection, sweat-resistant, water-resistant | IPX4, water-resistant | |
| Recommended Use | Portable electronics | Portable electronics | |
| High-Resolution Audio | - | Yes | |
| Tracking Data | - | Heart rate |
| SOUND QUALITY | ISOtunes Free Industrial | Soundcore Liberty 4 |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.0 | - | |
| Bluetooth Audio Codec | aptX | LDAC | |
| Active Noise Cancelling | - | Yes | Soundcore Liberty 4 are equipped with active noice cancellation. |
| Noise Isolating | Yes | - | ISOtunes Free Industrial are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | 360° Spatial Audio | |
| Frequency Response | - | Up to 40000 Hz | |
| Features | Built-in volume limiter | MultiPoint Technology, ACAA 3.0 technology |
| MICROPHONE | ISOtunes Free Industrial | Soundcore Liberty 4 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Noise Cancelling | - | Yes | Soundcore Liberty 4 microphone can cancel out ambient noise. |
| Microphones Included | - | 6 |
| REMOTE CONTROL | ISOtunes Free Industrial | Soundcore Liberty 4 |
|---|
| Controls | - | Answer/end, play/pause, squeeze control, ANC/transparency/normal |
|---|
| FEATURES | ISOtunes Free Industrial | Soundcore Liberty 4 |
|---|
| Features | - | HearID 2.0 Technology, Dynamic Head Tracking | |
|---|---|---|---|
| Sensors | - | Gyroscope |
| BATTERY AND CHARGING | ISOtunes Free Industrial | Soundcore Liberty 4 |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - wireless charging | |
|---|---|---|---|
| Battery Life | 7 hour(s) | 9 hour(s) | Soundcore Liberty 4 lasts longer on a single charge than the ISOtunes Free Industrial. |
| Battery Life Details | Continuous playback: up to 7 hours Continuous playback (with included charging case): up to 21 hours |
Continuous playback: up to 9 hours Continuous playback (with included charging case): up to 28 hours |
|
| Charging Time | 1.5 hour(s) | 1 hour(s) | Soundcore Liberty 4 recharge faster than ISOtunes Free Industrial. |
| OTHERS | ISOtunes Free Industrial | Soundcore Liberty 4 |
|---|
| Included Accessories | Charging case, 3 pairs of foam ear tips, 3 pairs of double flange ear tips (small, medium, large), USB-C charging cable | Charging case, CloudComfort ear tips (S/M1/M2/L)) | |
|---|---|---|---|
| Compliant Standards | OSHA, NIOSH | IPX4 | |
| Service & Support | Limited warranty - 1 year Limited warranty - money back guarantee - 30 days |
Limited warranty - 18 months |
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