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DELL KB813 keyboard USB QWERTZ German Black Material___Recycled plastic 95” Full Colour AMOLED 120 95” Full Colour AMOLED 120 x 240 Titanium Headset type Monaural Recommended usage Office Call center Wearing style Head band Product type Headset Ports & interfaces Wireless range 150 m Frequency response (music mode) 40 16000 Hz Frequency response (talk mode) 150 6800 Hz USB connectivity Yes Connectivity technology Wireless Headphones Ear coupling Supraaural Microphone Microphone mute Yes Number of microphones 2 MEMS (Micro Electro Mechanical System) microphone Yes Microphone direction type Unidirectional Microphone frequency 100 7300 Hz Microphone type Boom Battery Continuous audio playback time 13 h Battery technology Lithium Ion (Li Ion) Battery operated Yes Operational conditions Storage temperature (T T) 10 55 °C Operating temperature (T T) 5 45 °C Weight & dimensions Weight 57 g Packaging data Package height 203 mm Package depth 63 mm Package width 173
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