The Wireless Presenter R400 is designed to help you make your point in a meeting. It's got a red laser pointer, is easy to see against most backgrounds and projection surfaces, you can be sure they won't miss the point. Its intuitive slideshow controls help you navigate through your presentation with confidence. Features: 1. Built-in slideshow buttons. 2. Contoured one-touch keys for easy slideshow control. 3. Lightweight, portable, comfortable handheld feeling. 3. Plug and play, no software required, makes it simple to get started. 4. Red laser pointer with LED indicator, is easy to see against most backgrounds and projection surfaces. 5. Storable receiver, easy to use, simply insert the receiver to the USB port and it can be used immediately 6. Battery-power indicator, make you understand the power's situation. 7. On/off switch, can extend the battery lifetime. 8. 2.4 GHz wireless technology. 9. USB port. Specifications: Color: Black Effective Range: Approx. 50-foot(15-meter) Battery: 2AAA batteries(Not include) Output power: 0.5mW Material: metal + plastic Package includes: 1 x Wireless Presenter Remote Control R400（Without Battery） 1 x Wireless Mini Receiver Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!