Rechargeable, please connect the charging cable to the computer to charge, long battery life. Easily switch from screwing to unscrewing with the forward/reverse button. Equipped with 8 bits, can easy and quick to change the bits. The ergonomically designed handle is compact and at only 140g, making it easy to carry and operate Comfortable handle design and neatly arranged operation buttons can reduce user fatigue, improve working comfort and efficiency, save your time!, Weight: 0.46517537282 Pounds, Manufacturer: Ehwisbe