The New and Improved RYOBI 18V ONE+™ Reciprocating Saw is a new innovative product with 40% more power than the previous P514 unit. This unit also features an ANTI-VIBE handle which reduces vibration and user fatigue and during prolonged use. The RYOBI 18V ONE+™ Reciprocating Saw works with any 18V ONE+™ battery (sold separately) and is a part of the ONE+™ System of over 70 great tools that all work with the same 18V battery platform.