The Thumper Sport Hand Held Massager is the first massager designed specifically for home use from the people who have been making professional massagers for years. Like their professional models, the Thumper Sport Massager uses Thumper's patented percussive technology which transmit energy deep into muscle tissue. In our opinion, this is the finest and most effective massager available at this price.The Thumper Sport Massager is not a simple vibrator like other massagers offered for home use. These other massagers only vibrate your skin, but the Thumper Sport is a percussion massager that drives the massage energy deep into muscle tissue. The technology of this model, like all Thumper Massagers, uses percussion for a true deep tissue massage.