The 16-inch KTJ solar rechargeable stand fan is a 3-speed, AC/DC oscillating fan with a ~7.4V/7.8Ah lithium battery, lasting 9-15 hours. It features a ~400x350mm, 20W-40W solar panel for charging, remote control, USB port for phone charging, and a built-in night light, typically featuring 5 blades and adjustable height.