Heated Insoles Rechargeable Size S Remote control Recommended for outdoor use in winter, etc. I tried it once. It gets warm properly. I have lost the instruction manual, so I will send the insoles, cable, and remote control. I have included the instruction manual that was included in another person's listing photos. Please refer to this for operation. Press the power button on the insoles, and then press the switch on the remote control to warm them up. I bought these to keep warm while watching my child play in the park, but we stopped going to the park, so I have no use for them and am selling them. I think these would be comfortable to have for watching winter sports, etc. Thank you.