Sennheiser HD 660 S2 OpenBack Wired Over-EarHeadphonesSennheiser HD 660S2 OpenBack Wired OverEar Headphones Audiophile Grade Open Back Wired Headphones The Sennheiser HD 660S2 Open Back Wired Over Ear Headphones are premium high fidelity audiophile headphones designed for deep listening and studio grade sound reproduction. As part of Sennheisers legendary HD 600 series lineage, the HD 660S2 brings refined natural sound, wide soundstage and precision audio performance to demanding listeners who want an

2 MP sensor

This trimmer is built to keep up with back-to-back appointments without any loss of power

Iconic Marshall Design + Intuitive Controls

1 x Dust Bin Filter Cover (Black Plastic)

With the E2 Pro

and 100°C

Space‑efficient 96 % layout with 104 keys preserves a near‑full keyboard experience while reducing desktop footprint

This comprehensive set includes all essential parts needed for a full year of maintenance

Designed to deliver maximum performance

3 × HEPA Filters – High-efficiency filters that capture fine dust

0 and TruEdge 3D Edge Cleaning Technology

2 x Foam Filters