Runs on Electricity no hassles of heating water on gas or heaters. Can be keept inside the quilt to heat up the quilt or use on low temperature for massaging body parts Gives relief from pain and makes you feel comfortable. A very useful product for the winters Power: 500 watts Frequency : 50 Hz It is a high quality reliever from aches in cold climatic conditions. Gives relief from pain and makes you feel comfortable. Runs on Electricity no hassles of heating water on gas or heaters. You can keep it inside the quilt to heat up the quilt or use on low temperature for massaging body parts. Brand No Brand SKU 100234133_NP-1020490149 Model hot bag