The Klein Tools Cooling Fan (Cat. No. 60155) is designed for use with Klein Tools' hard hats and safety helmets with patented accessory mounts for easy attachment and removal. The dual-fan design forces outside air into the shell to push out stale hot air, facilitating cooling, Included long and short ducts can be configured 16 different ways for efficient airflow. Powered by a detachable, rechargeable lithium-ion battery (Cat. No. 29025) that can also charge other small USB devices.Features Rechargeable via USB-C cable (included) Modular design offers 16 ways to cool face, neck or under shell with long ducts or short ducts (included) Long term comfort with quiet operation; made of light weight materials Modular Battery (Cat. No. 29025) and Replacement Ducts and Cables Accessory Kit (Cat. No. 60490) also sold separately Low profile style conforms to shell to minimize bumps and snags Dual-Fan Design; Rechargeable Battery; Fits all Klein Hard Hat/Safety Helmets with Accessory Mounts Up to 6 hours continuous runtime via Modular Rechargeable Battery Cat. No. 29025 (included) Cooling Fan has powerful dual-fan design for efficient airflow on head, neck or face Easy mount design: attach to Klein's front/back mounts; no straps needed WarningsRead, understand, and follow all instructions, cautions and warnings attached to and/or packed with all Hard Hats and Accessories before each use. Failure to follow these warnings and instructions may result in serious bodily injury or death. Battery Capacity: 3200 mAh Battery Life: High - 3.5 hr, Low - 6.5 hr Voltage: 3.7V Wattage: 10W Max Number of Speeds: 2 Fan Type: Dual centrifugal fans Air Flow: Low/High Airflow Configuration: 16 ways with long and short ducts Weight: 0.43 lbs (fan 195g, battery 109g) Overall Length: 6.2 in (15.8 cm) Overall Width: 3 in (7.6 cm) Overall Height: 2.8 in (7.1 cm) Depth: 6.2 in Material: PC/ABS/TPE lightweight materials Mounting Type: Via Klein accessory mounts for front/back attachment, no straps needed Ingress Protection: Fan IPX4, Battery IP54 Drop Rating: 2 m (6.6 ft) Battery Type: Lithium-Ion Number of Lithium-Ion Cells: 1 Country of Origin: China Color: Gray Application: Personal Hard Hat Cooling Fan DownloadsVideo DownloadSafety Data SheetSafety Sheet 1Video DownloadSpec SheetInstructions60155-Instructions- WEB.pdf