Compact Size Allows Installation Even in Small Spaces - Automatically Swings 45° L/R - Compact size allows installation even in small spaces - 3-stage automatic timer with 1, 2, and 4 hour power-off selection - Up to 21.2 hours of continuous runtime on low speed with a 18V 6.0Ah LXT battery (battery not included) - 3 settings (High 180 m/s, Medium 150 m/s, Low 120 m/s) for optimal air velocity control Note Tool only (without Batteries & charger) Continuous use (approx.) (min.) / Low / Medium / High: 630 / 380 / 275 (with BL1041B) / Low / Medium / High: 315 / 190 / 135 (with BL1021B) Max air flow: m /min / High / Med / Low: 4.6 / 3.8 / 3.0 L/min Dimensions (L x W x H) / 185x260x284 mm Net weight / 1.3 kg (with BL1021B) - 1.7 kg (with BL1041B) Available Variants: Tool only ( Does not Include battery / charger / carry case )