Features: - Support Positive & Negative Rotation: Just press the button to unscrew or screw up the screws with ease. - Dual Working Modes: When the screws are too tight, you can rotate the screwdriver manually. - Includes 11pcs Screwdriver Bits: with 11pcs different screwdriver bits, meeting the different demands for your repair work. - Built-in Rechargeable Battery: 3.6V 1100mA lithium battery, easy and quick for charging via Micro USB interface. - Mini and Compact Design: Lightweight and comfortable for long time use, a good helper for repairers. Specification: Brand: STONEGO Type name: Mini Electrical Screwdriver Voltage:3.6V Battery:1100mah Lithium battery Speed: 250RPM Max torque: 1.3N.m~3N.m Chuck size:6.35mm(1/4") Plug type:Micro USB Charging time:5hours Weight:0.17KG Package include: 1 Set Electric Screwdriver Set