GCY42 Bosch 3.0V Bluetooth Tool Module The GCY42 Bosch 3.0V Bluetooth Tool Module allows the user to connect to next-gen tool control. The module can be quickly installed into a variety of Bosch connected-ready tools to provide Bluetooth® connectivity to mobile devices. Bosch connected-ready tools includes impact drivers, drill/drivers, hammer drill/drivers, grinders, rotary hammers, lights, circular saws, track saws and chargers. The GCY42 Bosch 3.0V Bluetooth Tool Module links to the free Bosch Toolbox mobile app, so users can customize their tools, check tool and battery statuses, receive alerts about a tool issue and more. The enhanced control provided by the connectivity enables users to be more productive. The GCY42 Bosch 3.0V Bluetooth Tool Module offers up to a 100 Ft. connectivity range.