Sennheiser
HD 660S2
$433.28
Amazon US detail page verified 2026-09-22; exact model and variant matched to ASIN B0BT7XXYTB. Positioning: Audiophile open-back.
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Specifications
| positioning | Audiophile open-back |
| anc | No |
| audio connections | 6.35 mm / 4.4 mm balanced |
| battery life | Wired |
| bluetooth | No |
| codecs | N/A |
| foldability | Not foldable |
| microphone quality | Built-in call microphones; model-specific array |
| multipoint | No |
| release year | 2023 |
| weight | Model-specific weight |
