Operate the DeWalt DCE080D1RS-QW completely with your smartphone or tablet (Android and iOS) via Bluetooth and the DeWalt ToolConnect App. The laser then has a range of up to 300 meters outdoors. Without using the smartphone, the DeWalt laser has a range of up to 600 meters outdoors (80 meters indoors). This makes the laser suitable for jobs in large spaces. This laser is a 360 degree line laser. The horizontal line shines all around, so you can see the line across multiple walls. The laser is self-leveling up to 8 degrees. This makes the laser level automatically.