HCL-301 Heating Airpad is a handbag-style heating pad. It uses grime-resistant material for external layer and stretch mesh fabric for inner layer. Besides EVA-foam stuffing, it features a patent air valve. By opening the valve, the pad inflates automatically to provide a comfortable touch. For easy portability and storage, the pad can be pressed flat by releasing the air inside. The built-in rechargeable battery inside HCL-301 smart controller prevents users from being tangled in the power cord to ensure safety. HCL-301 can help to relieve physical discomfort and it is thus an indispensable partner in life.