18v, 4-1/2", ec brushless connected angle grinder kit, no lock on paddle switch, bluetooth connectivity & advanced electronics, ec brushless motor delivers greater runtime, capacity to transfer up to 35% more power & up to 110% more runtime using core 18v battery, bluetooth connectivity supplies link to free bosch toolbox app on mobile phone to customize settings & provide detailed feedback, includes: 18v core lithium ion 6.3 ah battery, 18v fast charger, vibration control handle, wheel guard, grinding disc & carrying bag.