Description: Air mapping technology that does not hurt the screen: non mapping click technology, , , no damage to the screen, sensitive and stable click, , click The indicator light shows the ing : each click head has its own blue indicator light, flashing frequency is consistent with frequency 62 gears: , upgraded , technology, of human finger , use while charging, of uninterrupted , click , like, grab orders, games, Live synchronously Steady adsorption of mucosal suction cups: Clicking head suction cups are mucosal material, which has adhesion and adsorption force, off after long term use; be washed with water, viscosity time of use, viscosity restored after washing with water. Fully Compatible: Compatible kinds of devices, for Android, for Specification: Material:Plastic Electronic Components Size Chart: 7cmx7cmx0.76cm/2.76inchx2.76inchx0.30inch Includes: Auto Note: Please allow slightly errors due to manual measurement and monitors.