[Latest model in 2025] The Excitech Peltier Vest is a cooling garment that supports comfort in extremely hot work environments. Equipped with three high-performance Peltier plates on the back to directly cool the inside of the garment. It is designed to efficiently cool down the back area, which tends to trap heat, and helps to combat heat during work. "Size" One size fits all for both men and women. With the adjuster on the side, you can easily adjust it to the size that suits you. [Third-party inspection and PSE certification] After manufacturing, this product is checked for appearance and product condition by an inspection agency independent of our company. We only ship products that have passed inspection. Please note that the included mobile battery has undergone PSE certification (conformity inspection based on the Electrical Appliance and Appliance Safety Act) and is marked with a mark indicating that it is a product that meets the standards. [Ultra-light & compact battery] It is equipped with a large 10,000mAh battery while being lightweight and compact at about 165g. [About operating time and charging] Weak: (green) about 6 hours　 Medium: (Cyan) Approx. 4.5 hours　 Fluctuations: (white) about 4 hours　 Strong: (Red) Approximately 3.5 hours (What is fluctuation mode... It is a mode that repeats 10 minutes of cooling + 2 minutes off. ） *The above values are measured at 30°C in the operating environment. *The operating time and charging time vary depending on the charging environment, the frequency of use of this product, the usage environment, mode, and combination. (Charging time) about 4.5 hours　 *When using a 5V⎓2A DC AC adapter [Installation method] (1) Turn the (fixing ring) from the device body to remove it. (2) From the ventilation on the back (Velcro part), put the device inside the clothes. (3) Set the metal plate so that it faces the "inside (back side)" and adjust the position by rotating it in a natural direction where the wiring does not pull. (4) Insert the claw inside the fixing ring into the cutout of the stepped guide of the Peltier unit, and lock it by "turning it to the right" while pushing the main unit in. *The guide has a three-stage structure *Be careful not to tighten too much.　 (5) Plug the USB terminal of the Peltier itself into the mobile battery and store it in the battery pocket through the "through hole" along with the cable. (6) Fit the silicone controller into the metal eyelet on the right chest. (7) When removing it, turn it to the left while pushing in the fixing ring to remove it. [Japan Planning Support] If you have any questions or notices about the product, please feel free to contact our customer support for consultation. 【Contents】Main unit, Type-C USB charging cord, Japanese instruction manual (with warranty card) *This product does not come with an AC adapter.