Klein Tools 60155 Dual Cooling Fan for Hard Hats and Safety Helmets, Powered by USB Rechargeable Battery to Cool Head, Neck, Face

POWERFUL DUAL-FAN DESIGN for efficient airflow on head, neck or face LONG TERM COMFORT and quiet operation; made of light weight materials LOW PROFILE STYLE conforms to shell to minimize bumps and snags 6-HOUR RUNTIME via efficient Modular Rechargeable Battery Cat. No. 29025 (included) MODULAR DESIGN offers 16 ways to cool face, neck or under shell with long ducts or short ducts (included) EASY MOUNT DESIGN attaches to Klein's hard hat mounts; no straps needed VERSATILITY allows attachment to a variety of Klein Hard Hats and Safety Helmets, Cat. Nos. 60100, 60105, 60400, 60401, 60345, 60262, 60248, 60249, 60149, 60150