Sennheiser HD 660S2 Wired Over-Ear Headphones

Features: Tolerances for ±1 dB Accuracy, Detachable Cables, Ultralight Aluminum Voice Coils, Stainless Steel Mesh Damper, Channel Matched Drivers, Includes Carry Pouch and 3.5mm Adapter, Dynamic Audiophile Headphones, Open-Back Design for Long Sessions, Extended Sub-Bass Response Down to 8 Hz

Quantity: 1

Wearing Style: Dual Ear with HeadbandFoldable: No Earpiece Swivel: No

Earpiece Design: Over-Ear (Circumaural)

Open/Closed-Back: Open-Back

Sound Field: Stereo

Number of Drivers: 1 per Earpiece

Driver Type: Dynamic

Driver Size: 1.5-inch / 38 mm

Impedance: 300 Ohms

Active Noise Cancellation: No

Frequency Response: 8 Hz to 41.5 kHz

Sensitivity: 104 dB SPL/V

Maximum Sound Pressure Level (SPL): 104 dB

Built-In Controls: No

Built-In Mic: No

Wireless: No

Wired Audio Connector: 1x 1/4-inch TRS1x 4.4 mm TRRRS

Included Adapter: 1/8-inch / 3.5 mm TRS

Cable Design: Detachable / Straight

Audio Connector to Earpiece: 2-Pin

Cable Length: 5.9' / 1.8 m

Charging Input: Passive Headphones-No Power Required

Color: Black

Environmental Resistance: No

Weight: 9.2 oz / 260 g