Features: Small， portable， exquisite and have been widely used Control function: forward， back， start， pause and black screen Hidden USB design with seamless control pen A good essential assistant demonstrations or presentations， you can easily point to the PPT or blackboard in any corner of the room Receiver use USB interface， plug and play， without complex setup Adopt the dry battery， more convenient to carry and replace Simple buttons layout， just move the thumb can be completed all the functions operation Suitable for WINDOW98/SE/2000/ME/XP/Linux/Windows Vista various systems Support various file presentation， web pages and e-books browsing As the laptop， projector promotional gifts 100% brand new and high quality Details: Material: ABS Remote control: yes Item size: 111.5*37.8*27.4mm/ 4.4*1.49*1.08inch (L*W*H) Item weight: 40g Charge mode: dry battery Battery: 2 *AAA battery(not included) Distance control: 20m Function: wireless presenter with laser pointer Application: speech， teaching， meeting， exhibition， promotional gift Color: black Condition: brand new Package includes: 1 * wireless presenter (battery not included) 1 * USB wireless receiver