General description The Portable Mini Necklace Fan is a USB rechargeable handheld fan designed for personal cooling. It features a detachable rope for hands-free use, allowing you to hang it around your neck and enjoy a refreshing breeze while on the go. Weighing only 0.25 lb, it is lightweight and comfortable for extended wear. Technical specifications Maximum power: 6W Noise level: 36-45dB Wind speed: 3 speeds Product size: 162 x 80 x 17 mm Battery capacity: 3000mAh Charging time: about 2-3 hours Battery life: low speed: 15 hours, medium speed: 6.5 hours, high speed: 4 hours Negative ion concentration: 1000w, concentration: less than 0.03ppm Number of fan blades: 7 Material: ABS + electronic components Compatibility and accessories Includes: 1x fan, 1x USB charging cable, 1x lanyard Usage 3 ways to use: 1. Hold it directly in your hand; 2. Place it on the desk with the base as a desk fan; 3. Hang it around your neck using the lanyard. Other information USB power supply can be