This 70/80 inch round spa pool features durable reinforced PVC walls and an insulated cover to retain heat efficiently. It includes 110/130 air jets for soothing bubbles and a thermostatic electric heater with PTC technology for safe, energy-saving warmth. The spa is easy to operate with a smart touch panel and built-in safety features like child lock, overheat protection, and GFCI plug. Additional conveniences include a filter replacement reminder, quick drainage hose, and handles for easy movement. Note: bubble and heating functions cannot run simultaneously and use is not recommended below 39℉.