This electric screwdriver set includes 48 S2 screwdriver bits with Hex, Slotted, Triangle and other sizes. It also comes with a magnetizer, USB charging cable and a portable case. Its motor will stop the power supply any time it is blocked and will also automatically stop after 2 minutes of rotation and will start again when pressed. This feature protects the motor for prolonged service life. In addition, the charging light reminds you to charge by flashing 5 times and it also has a power saving mode in which the illumination will automatically turn of after 3 minutes, which saves energy and protects the battery.