1. Product material: aluminum alloy.2. Built in batteries: 3 Lr41 button batteries.3. Three in one function: red laser, LED white light, mobile phone pen.4. Applicable products: applicable to all mobile phones and tablets with touch screen function.5. Product features: this multi-functional stylus has three features: red laser, LED white light and touch screen stylus, with multiple functions and wide application range.

http://olla.gr/at-15-3-in-1-mobile-phone-tablet-universal-handwriting-touch-screen-with-red-laser-and-led-light-function-silver/