The Bosch Levelling Remote app enables you to conveniently control your Bosch Professional levelling tool via Bluetooth® from your smartphone. Using the app, you can control the laser remotely without having to even touch it, thereby increasing productivity and efficiency in your daily levelling tasks. The app can be connected to all Bosch Professional levelling tools (line lasers, combi lasers and rotary lasers) which contain a "C" in the name, for example: • GCL 2-50 C/CG Professional • GCL10