1.Grab the Attention of Your Audience with INFINITER CelluLaser! CelluLaser is a way to grab the attention of your audience and is always with you no matter where you are. This is a great way to emphasize your point (no pun intended) when giving a presentation. Just remove the cap from CelluLaser, plug it into your phone/ tablet PC micro USB port and you are ready to go. Always attract a lot of attention when you make your mobile phone become your presentation assistant. 2.Easy to Carry and No Battery is Required! No battery is required. Small, light-weight and easy to carry. CelluLaser easily attaches to your key chain and fits comfortably in your pocket or purse. It is there for you when you need it. 3.Touch Screen Quickly, Accurately & Comfortably with CelluLaser Stylus Function! The integrated stylus of CelluLaser can be used on all styles of touch screen devices. CelluLaser makes typing on your touch screen quick, accurate &comfortable. 4.OTG Supported- The CelluLaser can work with all Android 2.3 or later versions of smart phone or tablet PC with OTG function. Please make sure your device is an OTG enabled Android devices before you decide to use CelluLaser as a laser pointer.