Everything about the order was handled professionally.
Sennheiser HD 660S Wired Headphones
Product Details
Purchased from a flea market site, but selling due to a mismatch with my sound preferences.
The ear pads have been replaced with new ones.
Includes a 3.5mm unbalanced cable and a 4.4mm balanced cable.
- Model: HD 660S
- Color: Black
- Type: Open-back
- Cable: Detachable
Thank you for looking.
Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.
Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.
Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.
Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.




