● Material: 100% Polyester ● Battery Capacity: 30000mAh ● Operating Voltage: 7V/9V/12V/15V/19V ● Color: Gray ● Size: XL ● PS Mark Registered Business Name: R.K LLC Type of PS Mark: PSE ● Set Contents: Workwear Vest with Fan x 1 Fan (approx. 103mm diameter) x 2 Dedicated Battery x 1 Charging Cable x 1 Instruction Manual and Warranty x 1 ★★★ Recommended Points ★★★ 【Industry-Leading! 9-Blade Powerful Fan & 5-Level Airflow】 Achieves 30% more airflow and 25% quieter operation than conventional models! The independently developed "Silent Double Fan" generates a three-dimensional airflow of 2.5m per second. Cools from the neck to the back in 3 seconds → Immediately blocks the stuffiness! 【Ultra-Energy-Saving Design! 30000mAh Large Capacity Battery】 50% more capacity than similar sizes (other companies average 20000mAh) Continuous operation for up to 46 hours / 46 hours possible in energy-saving mode! Supports fast charging: - 5V・3A adapter: Fully charged in about 7 hours (80% in 6 hours) - PSE certified / Overcharge and overheat protection features ※ For the first charge, please charge the battery after using up its power. Please use a 5V・3A/9V・2A /12V・1.5A USB adapter. 【Easy Operation 6 STEP】 1. Unscrew the cover from the fan body. 2. Attach the fan (front) part from the outside of the garment to the mounting hole. 3. After attaching the fan cover, securely tighten the fan (rear) part of the garment clockwise as shown in the diagram. 4. Plug the black plug into the fan and the blue plug into the battery. 5. Put the battery in the pocket. (You can put a cold pack in the white mesh pocket.) 6. Wear the vest and briefly press the battery power button to turn it on. (Press and hold the power button to enter adjustment mode, then briefly press it to freely adjust the airflow.)