4 X 360° WITH TOP & FLOOR LINE LASER: This laser tool provides four 360 planes of laser light. The top 360° horizontal line can be used for ceiling installation. The 360° floor horizontal line is for tiling installation. With the lifting base, the 360° floor laser can raise from the surface to project over and travel past uneven surfaces or obstructions between 1" and 3.54" height. Two 360° vertical lines cross at 90°angles makes user quickly visualize and finish square layout. ✔️LCD DISPLAY&BLUETOOTH TECH: The laser level has LCD screen to easily get the status of the battery, angle, pendulum and pulse mode on the display. Bluetooth connectivity enables to control the setup of the laser from across the room with Huepar App on smart phone and remote control. The App and remote control can switch ON/OFF the laser lines and pulse mode, select the laser planes. Huepar App also provides out-of-level alarm. The laser tool can connect two Bluetooth devices simultaneously. ✔️TRIPLE POWER