ROSETECHNY mattress pad with temperature control function. - Brand: ROSETECHNY - Model Name: LS II (2) - Power Supply: AC100V - Function: Temperature control function Purchased 2.5 years ago and used only during winter. It was not used directly as it was covered with a sheet. During seasons other than winter, it was stored in the dedicated storage bag as shown in the first image. There is some pilling due to use. Please check the images. (14th image) Thank you for looking.