NDH 20 Closed-Back Studio Monitoring Headphones Specifications:

• Wearing style: Headband
• Foldable: Yes
• Ear coupling: Circumaural
• Acoustic principle: Dynamic Closed
• Transducer diameter: 38 mm (1-1/2″)
• Transducer magnet: Neodymium
• Diaphragm material: Duofol
• Transducer protection: Cloth-covered grille
• Nominal impedance: 150 ohms
• Frequency response: 5–30,000Hz
• Sensitivity at 1kHz/1 Vrms 114dB SPL (1kHz, 1 Vrms)
• Max input power handling: 1,000 mW
• Continuous input power handling: 200 mW
• THD at 1kHz and 100dB SPL: <0.10%
• Sound isolation: >34dB (>4kHz)
• Cable entry: Single sided, right ear cup
• Connectivity: 3.5 mm (1/8″) TRS jack plug (straight), adapter for 6.3 mm (1/4″)
• Cable length: Spiraled 1.5–3 m (5’–10′), Straight 3 m (10′)
• Cable weight: Spiraled 100 g (3.5 oz.), Straight 60 g (2.1 oz.)
• Ear cup contact pressure: 5.56.8 N
• Weight excluding cable: 390 g (13-3/4 oz.)
• Detachable cable: Yes
• Replaceable earpads: Yes
• Operating conditions: +10° C to +40° C (+50° F to +104° F); <90% RH, non-condensing
• Transport/storage conditions: –25° C to +70° C (–13° F to 158° F); <90% RH; non-condensing
• Packed dimensions (HxWxD): 245 x 255 x 85 mm (9-5/8″ x 10″ x 3-3/8″)
• Packed weight: 1.22 kg (2 lb. 11 oz.)
• Packed cube: 0.005 m³