This USB presenter is superior is ergonomic design allows user to comfortably take control of the PC and presentation. This presenter supplies presentation and laser pointer functions to make your presentation flow continuously. It is convenient to use in any USB port. This useful USB RF presenter with laser pointer offers great range reliability and freedom of movement. - Built-in laser pointer - Instant controlling of Microsoft PowerPoint & Media Player - To make your presentation flow continuously the Wireless Presenter integrates the slide up/down functions with a laser pointer on a remote hand held device using a wireless technology - The Wireless Presenter's attractive and compact design enables mobility of up to 10 meters from the laptop/PC while still maintaining a full navigational control of your presentations - The Wireless Presenter does not require any software and PC programming and take just a few seconds to install and use - USB 1.1/2.0 interface. Plug and play function. No PC programming or S/W driver - Working on any computer with USB port. - Frequency: RF 2.400~2.483GHZ - Powered by 1*AAA batteries (included) - Package includes: 1*wireless remote 1*USB receiver dongle 1*Chinese/English user manual