In depth comparison and review of Sennheiser CX 350BT 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 CX 350BT | ISOtunes Free Industrial |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 13 g | - | |
| Colour | Black | White | Safety yellow | |
| Protection | - | Dust-resistant, hearing protection, sweat-resistant, water-resistant | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | Sennheiser CX 350BT | ISOtunes Free Industrial |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| 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 Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Bluetooth Audio Codec | SBC, AAC, apt-X LL | aptX | |
| Noise Isolating | - | Yes | ISOtunes Free Industrial are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | - | |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Max Sound Pressure | 110 dB | - | |
| Features | - | Built-in volume limiter |
| MICROPHONE | Sennheiser CX 350BT | ISOtunes Free Industrial |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Operation Mode | Mono | - | |
| Audio Input Details | Omni-directional | - |
| REMOTE CONTROL | Sennheiser CX 350BT | ISOtunes Free Industrial |
|---|
| Controls | Answer/end, play/pause, next/previous track | - |
|---|
| BATTERY AND CHARGING | Sennheiser CX 350BT | ISOtunes Free Industrial |
|---|
| Battery Type | - | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Life | 10 hour(s) | 7 hour(s) | Sennheiser CX 350BT lasts longer on a single charge than the ISOtunes Free Industrial. |
| Battery Life Details | Continuous playback: up to 10 hours Standby: up to 340 hours |
Continuous playback: up to 7 hours Continuous playback (with included charging case): up to 21 hours |
|
| Charging Time | - | 1.5 hour(s) |
| OTHERS | Sennheiser CX 350BT | ISOtunes Free Industrial |
|---|
| Included Accessories | 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 - 2 years | Limited warranty - 1 year Limited warranty - money back guarantee - 30 days |
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