by Edited by Lisa A. Grimaldi | August 31, 2012

Smart Dot transmitterTurn your iPhone or iPod Touch into a laser pointer with Tangram's Smart Dot. The tiny antenna plugs straight into the iPhone or iPod audio jack and can beam out a laser for up to 10 hours. Download the product's free app, and the accessory can also be used to control a computer mouse during presentations. Cost: $79.90 plus shipping.