Simply Connected (Bluetooth): Control the laser remotely via your smartphone. You can switch lines on or off and adjust brightness without climbing a ladder or disturbing the tool's level position. Dual Power Source Compatibility: This unit offers ultimate power flexibility. While supplied with an AA battery adapter for immediate use; it is fully compatible with Bosch Professional 12V Li-Ion batteries (sold separately); allowing you to integrate it into your existing cordless kit. Versatile RM 2 Mount: Includes the RM 2 Professional rotating mount; which features a slide-in mechanism for quick attachment. It allows the laser to be rotated 360° around the plumb point for precise alignment without repositioning the mount itself. Combi Functionality: Simultaneously projects a horizontal line; a vertical line; and two centred plumb points (floor and ceiling); ideal for transferring layout marks vertically. Receiver Compatibility: By engaging the receiver mode; the working range extends up to 50 metres when used with an optional LR 6 or LR 7 receiver; making it suitable for brighter environments or longer distances. Pendulum Lock: The self-levelling pendulum can be locked secure; ensuring the precision mechanics are protected during transport in your van or toolbox. High Accuracy: Delivers professional-grade precision with an accuracy of 0.3 mm/m for laser lines; ensuring your installations remain dead square.