This is the cordless heated vibrating massage device paired with magnetic therapy to ease pain and stiffness in the lower back. Dual-frequency motors vanquish tension with seven vibration settings while soothing heat helps reduce aches. An inflatable lumbar support works to alleviate muscle strain, and magnetic therapy boosts the impact of the non-invasive, drug-free pain relief. The rechargeable cordless design is portable for use in the home, office, or while on the road. Built-in Lithium-ion battery charges via USB. One size fits most; with an extension belt. Gray.