| Brand | Audio Technica | Sennheiser |
| Model No | ATH-ANC25 | HD 203 |
| Wired / Wireless | Wired Headphone Specification | Wired Headphone Specification |
| Headphone Type | On Ear | Over Ear |
| |
| Magnet Type | Neodymium | Neodymium |
| Driver Diameter | 40 mm | 40 mm |
| Impedance | 20 ohms (when noise cancelling function is used) | 32 ohms |
| Sensitivity | 100 dB | 115 dB |
| Frequency Response | 20 - 20,000 Hz | 18 - 18000 Hz |
| Maximum Power Input | 100 mW | NA |
| Noise Cancelling | Yes (Reduces Noise up to 15 dB) | No |
| |
| Available Colors | Black | Grey |
| Connector Plating | L-Shaped 3.5 mm Gold Plated Jack | 3.5 mm Chrome Plated Plug |
| Cable | 1.2 m Detachable Cable | 3 meters Y-Type Cable |
| Weight | 104 g (Inclusive of Battery and Cable) | 362 g |
| Other Features | - Effectively reduce distracting background noise by 80%
- Detachable cable offers a convenient in-line volume control
- ATH-ANC25 audio functions even without batteries or when its noise-cancelling function is turned off. | - HD 203 is ultra-lightweight and comfortable to wear
- Oxygen-Free Copper Cable
- Replaceable leatherette ear pads |
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Compare Sennheiser HD 203 with:
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