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Design Backlight: No Surface coloration: Monochromatic Product colour: Grey Keyboard style: Straight LED indicators: Yes Full-size keyboard: Yes Wrist rest: No Features Wireless range: 10 m Plug and Play: Yes Keyboard Number of hot keys: 4 Device int

Battery Batteries included: No Design Product colour: Black Features Power source type: AC, DC Compatible battery sizes: AA, AAA, AAAA, C Compatible battery technologies: Lithium-Ion (Li-Ion) Compatible battery technologies: Nickel-Cadmium (NiCd) Num

Headphones Ear coupling: Circumaural Impedance: 32 ? Driver unit: 5 cm Acoustic system: Closed Driver type: Dynamic Headphone frequency: 20 - 20000 Hz Logistics data Products per pallet: 162 pc(s) Master (outer) case height: 530 mm Products per maste

Control unit Control unit type: In-line control unit Design Foldable: No Product colour: Red Product colour: Black Headset type: Binaural Product type: Headphones with microphone Certification: CE Headphones Headphone frequency: 20 - 20000 Hz Impedan

Headphones Impedance: 32 ? Headphone sensitivity: 90 dB Microphone Microphone direction type: Omnidirectional Microphone type: Boom Microphone sensitivity: -38 dB Microphone frequency: 100 - 10000 Hz Packaging data Package weight: 221 g Package depth