This single-person spruce sauna that can be used indoors or outdoors can use far-infrared heating to relax muscles, relieve joint pain and promote sleep; as a dry sauna, there is no need to process the steam after use, allowing you to enjoy a private sauna anytime, anywhere. Comes with 7 heated epoxy plates, operating temperature range from 20°C to 60°C (68°F to 140°F). The controller comes with a Bluetooth music player, ambient light and no downlight, 2 ambient lights (3500K) are used for lighting, 1 on the top and 1 under the seat. The most noteworthy thing is our safety protection device. If there is a leakage during use, the protection device will automatically cut off the power supply; you can use this sauna without any worries.