Makita BVR850 18-Volt LXT Lithium-Ion Cordless 8-Foot Concrete Vibrator Kit Makita-built motor delivers 12,500 vibrations per minute (VPM) to help increase concrete strength Up to 25 minute run time under load Compact, ergonomic design at only 11.7 lbs. for reduced operator fatigue Dual directional switch to conveniently hold the tool in either horizontal or vertical positions Tool not equipped with Star Protection- only compatible with Makita 18V LXT 3.0Ah battery (BL1830) Makita-built motor delivers 12,500 vibrations per minute (VPM) to help increase concrete strength Up to 25 minute run time under load Compact, ergonomic design at only 11.7 lbs. for reduced operator fatigue Makita LXT lithium-ion battery and charger produces 430% total lifetime work with 2.5X more cycles 3-year warranty on tool; 1-year warranty on batteries and charger