Brand: Lefant - Model: FS-01 - Power Supply: Built-in lithium battery - Distance: 15 meters - Laser Pointer Supported: Red laser pointer - Color: Black - With gyroscope - 2.4GHz wireless - USB 2.0 mini receiver - Built-in lithium battery by USB - Red indicator for power it is flashing when power shortage and on when charging; It is off after full charged - Lithium battery capacity: 500mA - Charging time: 4 hours - Working time: 9 months for using 2 hours everyday - Hold and move the air mouse to mark as play PPT - One key to screen off and restoration press the screen off the screen will be black or restoration; Press 2 seconds to Fullscreen or quit Fullscreen - Unique multi-media volume control - 3-mode adjustable dpi - Press the up and down button to Scroll down / Scroll up - Packing List: - 1 x Air mouse - 1 x Receiver - 1 x USB charging cable (50cm) - 1 x Chinese / English user manual