Features: 1. Portable and convenient: Simple design, compact and portable. Mini USB receiver stored in wireless presenter tail which it stays secured into place with a magnet system, making it gliding and easy to take out and lay back. 2. Through an AAA battery power supply, with sleep and auto standby functions, energy-efficient and durable. 3. Buttons: Page up / page down / volume / play slides / full screen / black screen / hyperlink for PowerPoint presentation, supports website browser / picture software page up and down flip. A bright red light pointer highlights key areas of your slides. 4. Wireless Control: Equipped with grade micro chip, operating on 2.4G RF frequency, up to 100 meters wireless range, 360-degree control. so you can free to move around the room and interact with your audience. 5. For Operation System: Support for Windows XP / 7 / 8, Mac OS, Linux, Android. No hassle setup, plug and play, simply plug into your computer's USB port to connect to the computer, also can be connected to the phone with OTG function through the OTG adapter. Specification: Technology: RF Frequency: 2.4GHz Control distance: 100 meters 3R level Wavelength: 650nm Working voltage: 1.5V Battery: 1 * AAA battery (Not Included) USB receiver For Operating system: for Windows 2003, XP, Vista, Windows 7/8, Mac OS, Linux Color: Black Package List: 1 * Flip Pen 1 * Receiver 1 * Instruction Manual 1、Portable and convenient: Simple design, compact and portable. Mini USB receiver stored in wireless presenter tail which it stays secured into place with a magnet system, making it gliding and easy to take out and lay back. 2、Through an AAA battery power supply, with sleep and auto standby functions, energy-efficient and durable. 3、Buttons: Page up / page down / volume / play slides / full screen / black screen / hyperlink for PowerPoint presentation, supports website browser / picture software page up and down flip. A bright red light pointer highlights key areas of your slides. 4、Wireless Control: Equipped with grade micro chip, operating on 2.4G RF frequency, up to 100 meters wireless range, 360-degree control. so you can free to move around the room and interact with your audience. 5、For Operation System: Support for Windows XP / 7 / 8, Mac OS, Linux, Android. No hassle setup, plug and play, simply plug into your computer's USB port to connect to the computer, also can be connected to the phone with OTG function through the OTG adapt