A bian stone has the highest numbers with 3,670 pulses at 20-2000 kilohertz. Jade is next with 1,834 pulses at 20-1000 kilohertz. Of the three, a buffalo horn comes last with 353 pulses and 20-100 kilohertz. copy 2024, The Wax ApplePowered by Shopify You have submitted the request successfully! I’m an associate reporter covering skin care, hair care and gift guides, including recent s... https://trueskincareproducts.com/