The mini stand-up dual-purpose fan uses high-pressure airflow, which is ejected through the inner curved ray outlet, leading to a rapid expansion of the surrounding air, thus dramatically increasing the airflow area. Built-in noise reduction and vibration damping technology, 40DB light sound operation, quiet enjoy the summer cool. A hanging buckle is a bracket, that can also be an inverted buckle on the backpack, out of space more convenient. Made from abs material, measuring 4.5*3.2*1.18 inches, this custom portable hook usb rechargeable fan. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Tailored branding: Supports logo imprint and design personalization. Product Highlights: Compact size, lightweight, easy to carry.