Andis pulse zr ii the famous pulse zr now comes with removable lithium ion batteries to ensure you never run out of power'! '.strtoupper('t')his powerful clipper features a heavy duty motor with 5 speeds, meaning you can efficiently groom all coat types no matter what condition they are in'! '.strtoupper('h')aving 5 speeds means you can adjust the speed to meet the needs of the coat to ensure a perfect finish every time'. '.strtoupper('f')eatures heavy duty, detachable blade clipper in cordless design removable battery for fast, easy replacement lithium ion battery delivers a 3 hour run time on a 2 hour charge spare battery to charge while the other is in use equipped with a detachable ceramicedge 10 blade works with all andis ultraedge and ceramicedge blade'. '.strtoupper('5') speeds adjustable from 1,800 to 3,800 strokes per minute also comes complete with two batteries, charger, blade drive, blade oil, adaptors and carry case 12 month warranty