Wireless 2.4G Power Supply 1 x AAA battery (included) Distance 15 M Laser Pointer Supported Red laser pointer Color Black + silver + red Features Laser distance: >200m; Laser wavelength: 650nm; USB Port: USB 3.0 / 2.0 / 1.1; USB power supply: 4.5~5.5V; 360 degree wireless remote control; Built-in receiver; Convenient and portable. Supports System WIN / MAC / LINUX Packing List 1 x Presenter 1 x Protective bag 1 x AAA battery 1 x English user manual Dimensions: 5.83 in x 0.91 in x 0.79 in (14.8 cm x 2.3 cm x 2.0 cm) Weight: 0.74 oz (21 g)