Used a few times last year. I will clean it before shipping just in case. Everything in the photos is included. 2024 Model Instant cooling/heating for your body in 3 places! All-season cooling and heating clothing! Largest area Peltier wear! ● Product Features ● ● Sustainable comfortable work! Collaboration with specialized companies and leading universities! ・ Peltier wear based on verification tests supervised by Tohoku University Hospital ● Cool in the summer! ・ Amazing speed cooling ・ Up to about -23°C <surface temperature about 2°C> (※Temperature difference from the device surface temperature when the ambient temperature is about 25°C) ● Warm in the winter! ・ Amazing speed heating ・ Up to about +39°C <surface temperature about 49°C> (※When the ambient temperature is about 10°C, when wearing outerwear over the vest) ● New function! Added a fluctuation function ・ 1 minute stop after 5 minutes of operation. Function that repeats ON/OFF ・ Reduces sudden cooling and heating! ● Adjustable in 3 modes each for heating and cooling ・ Adjustable in 3 levels: strong/weak/fluctuation ・ Peltier devices are attached to the front and back, efficiently cooling and heating the body ・ Comes with a 20,000mAh battery ● Continuous operating time of the included battery ・ ICE mode Strong: 4.5 hours Weak: 6.5 hours Fluctuation: 5.2 hours ・ HEATER mode Strong: 12.3 hours Weak: 24.6 hours Fluctuation: 14.3 hours ● Fits various body types! ・ Free size design that supports S~5L sizes ・ Easy to move around because it uses stretchy fabric! ・ Prevents slippage and enhances the fit to the body by adjusting the front and side belts ～★Correct wearing combinations to enhance the ICE mode effect★～ ① Thin innerwear such as compression wear × Peltier vest ② Thin innerwear such as compression wear × Peltier vest × Fan-equipped wear ③ Thin innerwear such as compression wear × Peltier vest × Wear with high breathability on the back ※If you wear clothing over this product, wearing poorly breathable wear may trap heat Material Body: 88% polyester, 12% polyurethane Mesh part: 100% polyester