🛁【360° Full-Body Relaxation】 The inflatable hot tub spa features 108 high-powered massage bubble jets around the bottom, jetting smooth whirlpools to massage the full body while relieving physical & mental fatigue. Besides, the hot tub can accommodate 2-4 persons, so you can enjoy ultimate spa experience with your friends or family. ♨️【Superior & Comfortable Heating】 The blow up hot tub is equipped with a newly-upgraded 1440-Watt heater that can provide comfortable and superior heating. It can be heated by a maximum of 104 °F, and the heating rate is 3.6-5.4 °F/ per hour (Test with an ambient temperature of 82.4 °F). Moreover, there exists a dust-proof insulation cover for speeding up heating and keeping it warm. 🛁【Circulating Water Filtration System】 The filter cartridge can filter sand, debris, and hair while keeping the powerful water circulation and clean function. (Notice: After 168 hours of use, it will remind you to replace the filter cartridge). ♨️【Control Panel at Your Fingertips】 With this easy-to-operate control panel on the heated pump, you can easily control the whole SPA environment without standing up or going out of the hot tub, whether you want to adjust the temperature, bubbles and filter. 🛁【Premium Material】 The 4-person air-jet spa is crafted with puncture-resistant laminated PVC material (outer) and high-strength PVC material (inner), ensuring superior durability and comfort, and it can retain shape and keep stable even sitting on the sidewall. Besides, it also comes with a PE groundsheet to protect your floor and reduce heat loss. ♨️【Easy Setup & Multiple Accessories】 The inflatable hot tub can be inflated or deflated quickly by using an air pump, and you can learn how to assemble the air pump to the hot tub through the detailed instructions. Furthermore, it features convenient side handles for easy carrying, a cup holder to get cool drinks within reach, an ergonomic headrest to relax your head & neck, and a repair kit for emergency response.