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.