TASLAR Wireless Optical Pen Mouse, Mice 2.4GHz with USB Receiver for Web Scrolling PC Computer Laptop Notebook Mac book Touch Pen Mouse,(Black)  (Grey)

Innovative mini pen-style mouse: With handwriting input function, you can use it as a writing board for your tablet, laptop, desktop at will. A best tool for conference and multimedia teaching: Equal to PowerPoint presenter when needed, use mouse wheel to turn pages freely, presenting ppt at business meeting or assisting multimedia teaching. Remote control distance range is up to 10 meters so you can free to move around the room and interact with your audience. Low voltage alarm: When the alarm lights up, remind you to change battery in time, in case of stopping normal use.