Pulsar PT28136 is a 3.6V Li-ion Cordless Screw Driver. It is a lightweight and easy-to-use tool that is perfect for a variety of tasks around the home. The PT28136 is powered by a 3.6V lithium-ion battery that provides up to 25 minutes of runtime. The tool has a variable speed trigger that allows you to control the speed of the motor, and the built-in LED light illuminates the work area. The PT28136 comes with a variety of bits, so you can use it for a variety of tasks, including driving screws, drilling holes, and tightening bolts.