The professional clippers brand oster presents you and your dog with the golden a5 clippers in 2 different speeds the golden a5 1speed in black with one speed setting and 2200 spm or the golden a5 2speed with two speed settings and 3300 spm this is equivalent to 2200 or 3300 back and forth motions per minute at 45 watts both clippers offer a powerful 45 watt motor and are excellently suited for private or professional use they both offer quiet low vibration use and the blades are easy