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Features:Laser wave power: 1 mWLaser pointer colour: RedWavelength range: 0 - 650 nmPresenter functions: Laser pointerButtons quantity: 3Laser class: 2MOn/off switch: YesProduct colour: BlackLED indicators: YesPlug and Play: YesPower:Battery type: AAANumber of batteries supported: 1Weight & dimensions:Weight: 75 gDepth: 17.6 mmWidth: 138.8 mmHeight: 15 mmSystem requirements:Linux operating systems supported: YesMac operating systems supported: YesWindows operating systems supported: Windows 8.1