Features: Long Distance Long distance of 2.4 GHz wireless technology can be around 30m remote control, ultra-portable - storage slim USB wireless receiver is very easy to carry (Note: The USB receiver is located next to the battery slot in the back cover of the controller.) RF Wireless ControlWith RF wireless control designed specifically for computers and multimedia projectors. Makes your demonstration or presentation more dynamic. Applicable PeopleIdeal for lecturers, meeting presenters, teachers, sales managers or anyone giving a Power Point presentation. Support formSupports MS Word, Excel, PowerPoint , ACD See, website etc. Compatible with PC / Laptop / Tablet / for Windows / for Android / for Linux. Button ControlPage up and down, dark screen and escape/resume functions pages could be turned freely and silently, One-touch keys easy to control slideshow,and highlight effects can be obtained in the presentations. Easy eSimply plug the USB receiver to your computer which is inside the battery compartment. No driver required. Lightweight and compact, fit into your pocket or handbag. Specifications: Type: Wireless Presenter Material: Plastic Color: Black, Grey Size(L*W*H): About Wireless Presenter: 105x40x30mm/ 4.13x 1.57x 1.18inch Receiver: 24.7x 13.8x 5.14mm/ 0.97x 0.54x 0.2inch Battery: 1*AAA Battery( not included) Remote Control Method: Wireless Radio Frequency Technology Wireless Frequency: 2.4GHz Remote Control Distance: 30m Power: <5mW Distance: More Than 200m Wavelength: 650nm (red light) Wireless Presenter Working Voltage: 1.5V Sleep Current: <10uA Operating System: For Windows/For Linux/For Android USB Version: Compatible With USB 1.1/ 2.0/ 3.0 Receiver Working Voltage: 4.5~ 5.5V Package Included: 1pc x Wireless Presenter 1pc x Receiver Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.