Features: 1.[Horizontal Striped Road] Presentation clicker adopts horizontal striped road, which has better anti skid performance and is not easy to slip off. 2.[Ergonomic Design] The Presentation remote is ergonomically designed, and glossy lines provide a more comfortable grip. 3.[High Speed Transmission] Wireless presenter adopts high speed technology transmission, 2.4GHZ wireless frequency modulation technology, anti interference is more accurate and easy to use. 4.[Plastic Material] The Presentation clicker is made of plastic material, which is light in weight, small in size, easy to carry and store, simple to operate, and easy to use. 5.[Widely Compatible] Widely compatible with many devices, such as notebooks, desktops, set top boxes, projectors, smart batteries, etc. specification:Item Type: Presentation Clicker Material: Plastic Product Model: For VMP07 Size: Approx. 12 x 4 x 2.6cm or 4.7 x 1.6 x 1.0in Transmitting Frequency: 2.4GHZ Wireless Frequency Modulation Technology Remote Control Distance: Maximum Approx. 15meter or 16.4yd Adapter Battery: 2 x AAA Dry Battery (Battery Not Included) USB Version: USB 1.0 2.0 3.0 Compatible System: For Windows 98 or 2000 or XP or 7 or 8, for OS X, for Linux, for Android Function Purpose: Page Up and Down, Full Screen, Black Screen, Mouse, Label PackageList: 1 x Presentation Clicker 1 x Receiver NoteBattery Not Included