Speaking of heaters, the infrared rooms feature carbon and ceramic heaters that generate therapeutic infrared light to help relieve joint pain and relax the muscles. Infrared saunas are great for the skin, and may help aid in firming and clearing skin imperfections with regular recommended use. All units, whether 220Volt or 110 Volt, come with cord and plug. A CD player is standard on all models and select units feature on AM/FM radio with aux MP3 capability. You may call us with any questions regarding these fabulous sauna rooms.