Functions: 2.4GHz wireless connection, operating range up to 10m. Power Saving: If there is no 2.4GHz signal, it will turn off automatically. User-friendly design of the key position which is easy to grasp. Designed with a page turning wheel during a PPT presentation. Adjustable 500/1000 DPI optical sensor provides smooth motion control. Initial setting is 1000 CPI, you can use CPI speed switch key to get your favorite cursor speed. Pen shape, especially suitable for handwriting input and can be used on a narrow desk. Real Plug and Play, no additional driver needed. The small mouse stand will not take up too much space. Low voltage alarm function, reminds you to replace the battery in time. When the battery level is low, the low voltage alarm light will illuminate to remind you to replace the battery as soon as possible. Use AAA alkaline batteries. Specification: Grey colour Length: 13.8 cm / 5.4 inch Wireless carrier frequency: 2402 MHz - 2480 MHz Wireless working channel: 16, automatic frequency hopping Rated operating voltage: 5V. Rated operational current: 15 mA Tracking system: optics Maximum acceleration: 14 inches / second Resolution: 500CP1 / 1000CP1 adjustable USB interface: version 2.0 Working distance: 10 meters Package weight: 54g Quantity: 1 pcs Package includes: 1 x Air Mouse Wireless Optical Mouse 1 x 2.4 GHz USB receiver 1 x mount 1. 2. Please be aware of: