Ultrasonic Technology – the integrated misting fan/humidifier uses ultrasonic high frequency technology to convert the water into 1-5 million micro-sized particles that are dispensed into the air to produce a visible, micro-fine cool mist. SFan cover designed to be safe for little fingers. Easy to remove and fill 250mL (8.5 oz.) water reservoir. Up to 10 hours runtime (low fan, low mist), using rechargeable battery. Adjustable fan angle. 2 mist output settings. Auto shut-off when lid is closed. It’s a breeze to stay cool on a hot day with Veer’s Stroller Fan for hot days. Take it on campouts, to sidelines and beyond. Its integrated misting fan adds a cool mist on hot days. Long-lasting 10 hour run-time between charges. Designed from the ground up to be safe for small fingers. Fits on drink/snack trays and in cup holders on strollers, joggers and wagons, or stands on any flat surface.