
















🎶 Elevate your audio game — hear every detail, feel every beat.
The Sennheiser HD 660S2 are premium open-back audiophile headphones featuring a 38mm ultra-light aluminum voice coil and a 300 Ohm impedance for exceptional sound clarity. Expertly crafted with German components and assembled in Ireland, they deliver extended sub-bass impact and a wide 8Hz–41.5kHz frequency response. Designed for comfort with plush velour ear pads and an ergonomic headband, these headphones offer a spacious, natural soundstage ideal for critical listening. Included are balanced and unbalanced cables plus a 2-year warranty, making them a versatile and reliable choice for professionals and discerning music lovers alike.






| Noise Control | None |
| Frequency Response | 41500 Hz |
| Headphones Jack | 3.5 mm Jack |
| Model Name | HD 660S2 |
| Connectivity Technology | Wired |
| Included Components | 6.3 mm cable (1.8 m), 4.4 mm cable (1.8 m), 6.3mm to 3.5mm adapter, HD 660S2 headphones, Protective Case |
| Age Range (Description) | Adult |
| Material | Aluminium |
| Compatible Devices | Cellphones, Gaming Consoles, Laptops, Music Production Equipment, Portable Media Player, Tablets |
| Control Type | Media Control |
| Cable Feature | Detachable |
| Item Weight | 260 Grams |
| Net Quantity | 1 Count |
| Control Method | Touch |
| Number of Items | 1 |
| Audio Driver Type | Dynamic Driver |
| Earpiece Shape | Over Ear |
| Series number | 660 |
| Hardware Interface | 3.5mm Audio |
| UPC | 810091270370 |
| Supports Bluetooth Technology | No |
| Special Feature | Audiophile Stereo Headphones |
| Global Trade Identification Number | 00810091270370, 04260752330374 |
| Manufacturer | Sennheiser, Sennheiser electronic gramsbH & Co. kilograms. Am Labor 1. DE - 30900 Wedemark Germany |
| Model | 700240 |
| Model Year | 2023 |
| Product Dimensions | 24.2 x 18.2 x 10 cm; 260 g |
| Item model number | 700240 |
| Special Features | Audiophile Stereo Headphones |
| Batteries Included | No |
| Batteries Required | No |
| Cable feature | Detachable |
| Includes Rechargeable Battery | No |
| Manufacturer | Sennheiser |
| Country of Origin | Ireland |
| Item Weight | 260 g |
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