Mast Flip Pro Wireless brings you more control, more convenience and more innovation from inside out to take your skills to the max. Two working method available. One is work with big capacity battery as wireless, another one is with RCA jack as wired. When power depletion, the RCA connector can be replaced. Equipped with LED screen and coreless motor, give you smooth tattoo feeling. The ¡°Variable On-the-Fly¡± adjustable stroke is what sets the Mast Pro Flip machine from others on the market.