You are indeed worth this maxbell rechargeable presentation remote. The wireless presenter works well with PowerPoint and Prezi, works for Apple and Windows system. Applicable to the occasions as follows: business conference, PPT presentation in class, government organization, bid, training center, exhibition, etc. Convenient to point the remote at the projector when you want to change slides, or you need to be in front of the projector or it won't work without a mouse. keep a powerpoint clicker so you could point to things easily. the light is very bright and it easily connects to your computer. The 3 button layout makes you not fumble about trying to find the button to advance slides. Perfect for PowerPoint presentations and the USB receiver is stored right in the device, thus you'll never lose it. *Features : (1)Wireless Presenter: Suitable for Windows 7/8/10, Windows 2003, XP, Vista, Mac OS, Linux, Android and PowerPoint, Keynote and Prezi softwares. It is compatible with USB 1.1/2.0/3.0 port. (2)Presentation Remote: Adopts top-grade microchip, up to 100 meters working range, 360-degree control and 2.4G RF frequency. Automatic frequency hopping tech effectively avoids interference from others. (3)Multifunctional Design: Page Up/Down, Full Screen, Black Screen. Long press Page Up to Full Screen/Exit, long press Page Down to Black Screen/Exit. Long press Tab to switch; long press Enter to close. (4)Rechargeable Battery: Built-in a 300mAh rechargeable polymer lithium battery and comes with a universal micro USB port. The built-in USB receiver makes it portable and convenient. (5)Power Conservation: Comes with auto standby function for long-time working, energy-saving purpose and durable use. In addition, the separate power switch effectively avoids current leakage. *SPECIFICATION: *Transmitter - (1)Technology: Radio Frequency (2) Frequency: 2.4GHz (3) Control Distance: 100m (4)Class 3R (5) Max Output: <5mW (6) Laser Distance: >200m (7) Wavelength: 650nm (8) Battery: 300mAh polymer Lithium (9)Working Voltage:3.6V~4.2V (10)Sleep Current:<5uA (11)Dimension: 125*30*15mm (12) Weight: 32g * USB Receiver : (1)Operation System: Windows 2003, XP, Vista, Windows 7/8/10, MacOS, Linux ,Android(2)Dimension: 18.5*14.5*6mm (3)Weight: 2g *Safety Warning: (1) It is illegal to direct the beam at any flying objects, passing aircraft, moving vehicles and any public or private structures. (2)The pointer is not a toy, adult use only. (3) Do not directe the beam at people or animals. (4) A pointer can be dangerous if not used properly.