The pleasant, sometimes even healing effect of warmth is well-known. Thanks to powerful Lithium-Ion batteries, the warmth belt HK 72 makes this mobile. You can enjoy the warmth up to four hours, especially for the kidney section of the body. Four warmth steps and an automatic switch-off function after 90 minutes guarantee that you do not overdose the positive effect. This means enjoying ideal warmth without any cables while travelling or at home.