Fangrui Product Details Fangrui Product Details Wireless Presenter With Finger Ring Design, The Slip-resistant Ring Adjustable To Fit Finger Sizes . The Control Area With Five Buttons Can Be Controlled Simply By Your Thumb, Support Your Both Hands For Comfortable Control All Day Long. A Red And Bright Laser-pointer Thats Easy To See Against Most Backgrounds, Highlight Key Areas Of Your Slides, Super Easy To Use To Take Your Eyes Of Your Audience. Equipped With Top-grade Microchip, Wireless Control Range Up To 12 Meters, So You Can Free To Move Around The Room And Interact With Your Audience. The Mini Usb Receiver Supports Plug And Play Technology. No Driver Is Required. Built-in Docking Bay Stores Receiver Magnetically So You Are Less Likely To Lose Your Receiver. One-touch-keys Easy To Control Slideshow. Buttons: Laser-pointer, Page Up, Page Down, Launch Slide Show, Black Screen, Switch On/off. Built In Rechargeable Li-polymer Battery. You Can Charge It By A Laptop Or Wall Adapter Via The Standard Micro-usb Input Port. Comes With Auto Standby And Dee