4" High velocity dual powered fan. Assorted Colors: Red/ Blue/ Silver. AC 120V 60Hz. 360 degree vertical adjustable fan head. Powder coated safety grill for superior durability. Simple on/off rocker switch. Rubber tipped base helps prevent vibration. Single speed setting. Silent wind. Safety grill. Sturdy base. Includes 48 inch USB cord and AC adaptor for powering from your computer or other USB source, or use adaptor for direct AC outlet. ETL + cETLus.