Feature:1. Integrated plug-in acceptance makes this wireless pointer easy to use, no need to install the driver, which is ready to use.2. For easy battery replacement of two AAA batteries(not included), with battery replacement reminder, such PPT pen is with easy battery replacement, economical.3. Support one-click hyperlink, this remote control pen can be easy to use in practicality.4. 1150mAh battery capacity provides laser presenter long endurance for energy-saving.5. Entitled with pratical adoptability, the remote control pen supports page turning for extreme user experience.Specification:Item Type: Laser presenterProduct Model: R400Laser Range: 600mRemote Control Distance: 100 metersTransmitter Power Supply: Two AAA batteries (without batteries)Battery Capacity: 1150mAhVoltage: 3.6V-4.2V.Package List:1 x Laser Presenter1 x English Manual1 x USB InterfaceNote:Transmitter battery is not included.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.