This is a reciprocating saw, which adopt large power motor for powerful control, 0-1500rpm non-load speed, which can provide stable power output. Detachable battery, easy to install and easy to detach. Comes with 4 pcs replacement blades, you can quickly swap out and replace it without using extratools. Suitable for cutting wood, iron sheet and plastics. Features: Adopt large power motor for powerful control, 0-1500rpm non-load speed, which can provide stable power output. Detachable battery, easy to install and easy to detach. Comes with 4 pcs replacement blades, you can quickly swap out and replace it without using extratools. With lock protective function, just press the lock button to lock it. Compact size, light weight and portable, will not feel tired after long time use. Ergonomic anti-skid handle design for comfortable grip during operation. Hollow out heat emission holes design, can provide fine dissipation effect. Support both cut-in cutting and flat sawing, suitable for cutting wood, iron sheet and plastics. Specifications: Material: ABS+metal Battery: 5 * 3.7V, 1500mAh battery (included) Discharge voltage: 21-48V No-load speed: 0-1500 r/min Max cutting depth: 100mm