Bluetooth Wireless and RF 2.4 GHz PowerPoint Clicker with finger ring design, the rubberized -resistant ring adjustable to fit finger sizes. The control area with five buttons can be controlled simply by your thumb, quickly switch between BT RF 2.4GHz modes with a single button. A red bright lasering pointer that's 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 , wireless control range up to 12 meters, so you can free to move around the room interact with your audience. The mini USB receiver suppts plug play technology. No driver is required. Built-in docking bay stes receiver magnetically so you are less likely to lose your receiver. One-touch keys easy to control slideshow. Buttons: lasering pointer, page up, page down, launch slide show, black screen, switch on/off. Built in rechargeable -polymer battery. You can charge it by a laptop wall adapter via the stard -USB input pt. Colour: Black Material: Plastic Package Contents: 1 Wireless Presenter 1 Receiver 1 USB Cable 1 Stage bag Only the above package content, other products are not included. Note: Light different displays may cause the col of the item in the picture a little different from the real thing. The measurement allowed err is 1-3cm.