This Breg Cooling System polarcare Cube is perfect for post survey recovery. It comes with a power cord and an Intelliglo Multi-Use Pad, making it a versatile device for all your cooling needs. This system is powered and has an output voltage of 6V. It is doctors choice for those in need of a cooling system for their recovery needs. Used for recovery of ACL surgery. NO PRESCRIPTION NEEDED. Costs $200 when purchased through doctor or hospital. Insurance does not cover this expense so save some money this way.