Shure

Developed for professional audio engineers and musicians, the SRH840A are optimized for critical listening and studio monitoring. A precisely tailored frequency response and 40mm neodymium dynamic drivers deliver rich bass, clear mid-range and extended highs. A wide, padded headband and collapsible design combine with Shure durability to provide the ultimate listening experience.

Features
• Precisely tailored frequency response delivers rich bass, clear mid-range and extended highs
• Premium, padded headband provides ergonomic fit for superior comfort over extended periods
• Collapsible design for easy storage and portability
• Closed-back, circumaural design rests comfortably over the ears and reduces background noise
• Detachable locking cable securely locks cable into ear cup and enables easy replacement
• Legendary Shure quality withstands the rigors of everyday use
• Includes additional pair of ear pads, detachable straight cable, carrying bag and threaded 1/4" (6.3 mm) gold-plated adapter

Specifications:
Transducer Type: Dynamic, Neodymium magnet
Driver Size: 40 mm
Frequency Response: 5 to 25,000 Hz
Sensitivity: @ 1 kHz 96 dB/mW
Impedance: @ 1 kHz 38 Ω
Maximum Input Power: 400 mW
Weight: 273 g (9.63 oz.)
Connector: Gold-plated 3.5 mm (1/8) stereo mini jack plug with 6.35 mm (1/4) threaded adapter
Cable: 3 m, (9.8 ft) straight, detachable, non-PVC, Oxygen-free copper (OFC)