... heated FIR tech,therapy function,low price pad Far infrared heated therapy ppad,therapy pad,heating pad,therapy pack MHP-1215.ANPAN Features ... :1. Far infrared ray generated by this therapy pad will penetrates into skin for 3-5cm,thus will activate ... a good therapy effect for arthritis, rheumatism,unknow painness,injured wound etc.3. Especially suitable for those protect against cold,pain ...