• Car Cup Holder Fan: Simply place the fan in your car's cup holder (ONLY for Round Holder), and connect it to a USB power source for instant cooling.
• USB interface & 3 wind speedsNo power supply. Need USB interface to connect to car charger, mobile power supply, etc. The car cup holder fan has three wind speeds, one-button adjustment, convenient and trouble-free.
• 360-Degree Rotation: with a flexible arm and 360 rotatable fan head, The fan can be adjusted to direct airflow exactly where you need it.
• Fit in Round Cup Holder:Only works in round cup holders! Just twist the adjustable base extender to fit different sizes (2.7'' to 3.8'' diameter), such as cars, trucks, vans, golf carts and other automobiles.
• Quiet Operation: Enjoy a cool breeze without any loud or distracting noise, allowing you to focus on the road ahead.
• Easy to Install- This car cup holder fan adopts a humanized design, which is extremely convenient to install and remove. Just rotate the base to complete the installation and fix it firmly on the cup holder.