4-6 Persons inflatable hot tub: RELXTIME inflatable spa with 130 soothing high-powered bubble jets and a built-in integrated water filtration system to keep the water inside clean, which can make the tense and tired body get excellent relaxation, and also has a very good effect on friends who want to relieve the pain. Easy installation and control: The built-in chassis can be inflated directly, reducing the trouble of installing your spa and effectively reducing the occupied space. Using a touch digital control panel, easy to inflate & deflate within minutes of clicking the "Bubble" button, can also adjust the heating system and circulation automatically. Multiple compatible accessories: 1 insulation cover (50% increase in heating energy efficiency and heat retention), 1 EVA floor mat, 1 LED lamp (Adding to the atmosphere of the bath), 1 pool cover, 2 filter cartridges & 2 covers, 1 drink tray, 1 inflation hose,1 power cable, 1 storage bag, 1 instruction manual. (LED light requires 3 AAA batteries, not included) Durable beam construction: Durable laminated PVC material portable tub with vertical 'I-beam' construction which makes the walls rigid and makes them resistant to scrapes and punctures, ensuring your hot spa never loses its shape and stability. All RELXTIME air jet spa is CE/GS/ETL/EMC/UKCA/REACH listed. Freeze protection function: Freeze protection automatic heating function prevents inner components from freezing during colder temperatures, you can use your inflatable pool in colder temperatures during the fall or winter seasons! A cover with secure locking buckles keeps the water warm and prevents dust and debris from collecting on the water, with lift handles, the spa can be moved around with ease (when empty).