With the advanced SMARTECH technology, the Black & Decker BDCDDBT120C 20V MAX Drill Driver is iOS and Android compatible with Bluetooth controls that allow for remote battery locking/unlocking, battery locate, state of charge, and programmable alerts and reminders. SMARTECH iOS and Android compatible app enables Bluetooth controls allowing remote battery locking/unlocking, battery locate, state of charge and programmable alerts and reminders. Battery includes built-in USB port for charging phones, tablets, mp3 players and more. Compact and lightweight design allows access to tight spaces. Keyless chuck for easy bit changes. 11 position clutch to prevent stripping of screws and damaging material. LED work light to illuminate work surface.