Lucky Tom Pet Bed Cooling System, Consistent Warm and Cold Water Pad, No Electric Shock or Chemical Gel Needed, Machine Washable Bed, Ideal for Home and Crates (Cooling & Heating Green, 30" x 20")Brand: Lucky Tom Color: Green Features: All Day Cooling Or Heating: Maintains a pet safe Comfortable temperature range. Effectively provided cool or warm experience for 24 hours a day in summer or winter. Compare with AC, our system is energy savings. Working Quiet and Energy Saving: Our system operates with minimal sound during use (startup may produce brief, mild activation tones, never disruptive noise levels), ensuring anxious pets and noise