Features: 2.4GHz wireless presenter pen with a USB receiver, plug and play, no need to install any software. Compatible with Windows XP/7/8/10, Mac OS, Linux, Android. Support page up/down, hyperlink, volume control, full screen, black screen, play/exit slides, easy to operation. Come with a clip that allow you to put in your pocket securely. The bright red light can be easy to see against most background. 100 meters remote control distance, suitable for large conference rooms, you can walk around to interact with your audience. There is a socket at the rear for storing the USB receiver. Magnetic suction design, USB receiver can be stored in the presenter pen, anti-lost. Compact and lightweight, no need to charge, AAA battery power supply(Battery is not included), low battery reminder. A great assistant for teachers, professors, meeting presenters, etc. Specifications: Color: Black Material: ABS Remote Control: RF 2.4GHz Control Distance: 100 Meters Light Wave Length: 650nm Working Voltage: 1.5V Sleep Current: