Erard PRO Projector brightness___3400 ANSI lumens 5 mm connector Yes Headphones 507024 00250 5 mm connector Yes Headphones Ear coupling Circumaural Headphone frequency 20 20000 Hz Impedance 36 Ω Driver unit 4 cm Microphone Microphone type Boom Microphone frequency 100 10000 Hz Microphone direction type Unidirectional Cardioid Folding microphone Yes Microphone mute Yes System requirements Windows operating systems supported Yes Weight & dimensions Width 180 mm Depth 79 mm Height 189 mm Weight 240 g Packaging data Package width 91 mm Package depth 209 mm Package height 231 mm Package weight 517 g Packaging content Audio adapters included 2 x 3 Features Type Mounting kit Product colour Black Rack capacity 1U Packaging content Screws included Yes Logistics data Harmonized System (HS) code 85389099 Steel Weight & dimensions Width 340 mm Depth 250 mm Height 854 mm Packaging content Quantity 1 to store your chargers or your remotes