This is a FREEZE COOLER cool vest from Aizu Frontier, featuring a Peltier mesh cooling function. - Model Name: FREEZE COOLER - Color: Black - Included: Box, instruction manual, cooling pads - Features: Mesh material, cooling function The battery is PSE compliant. Thank you for viewing. I bought this new last year and put it away without using it once after taking it out of the box. ⚠️ The battery has some scratches, etc., from when it was taken out of the box, so please refrain from purchasing if you are concerned about this. If anyone would like to use it, please feel free to purchase it.