In depth comparison and review of Sennheiser HD 1 In-Ear Wireless and ISOtunes Free Industrial. 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 | Sennheiser HD 1 In-Ear Wireless | ISOtunes Free Industrial |
|---|
| Product Type | Earphones - Bluetooth - wireless - NFC | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Colour | - | Safety yellow | |
| Protection | - | Dust-resistant, hearing protection, sweat-resistant, water-resistant | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | Sennheiser HD 1 In-Ear Wireless | ISOtunes Free Industrial |
|---|
| 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 | ISOtunes Free Industrial have a more advanced version of Bluetooth than Sennheiser HD 1 In-Ear Wireless. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Bluetooth Audio Codec | - | aptX | |
| Noise Isolating | - | Yes | ISOtunes Free Industrial are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 15 - 22000 Hz | - | |
| Total Harmonic Distortion (THD) | <0.5% | - | |
| Max Sound Pressure | 112 dB | - | |
| Features | - | Built-in volume limiter |
| MICROPHONE | Sennheiser HD 1 In-Ear Wireless | ISOtunes Free Industrial |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Operation Mode | Omni-directional | - | |
| Sensitivity | -44 dBV/Pascal | - |
| CABLE | Sennheiser HD 1 In-Ear Wireless | ISOtunes Free Industrial |
|---|
| Cable Type | USB charge cable | - |
|---|
| BATTERY AND CHARGING | Sennheiser HD 1 In-Ear Wireless | ISOtunes Free Industrial |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | 170 mAh | - | |
| Battery Life | 10 hour(s) | 7 hour(s) | Sennheiser HD 1 In-Ear Wireless 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 |
|
| Charging Time | 1.5 hour(s) | 1.5 hour(s) | The charging of both headphones last the same time. |
| OTHERS | Sennheiser HD 1 In-Ear Wireless | ISOtunes Free Industrial |
|---|
| Included Accessories | Carrying case, 4 pairs of earpads (extra small, small, medium, large) | Charging case, 3 pairs of foam ear tips, 3 pairs of double flange ear tips (small, medium, large), USB-C charging cable | |
|---|---|---|---|
| Compliant Standards | - | OSHA, NIOSH | |
| Service & Support | - | Limited warranty - 1 year Limited warranty - money back guarantee - 30 days |
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