muscle massage gun deep tissue for athletes, percussion electric massagers for neck back, shoulder body pain relief, 30 speeds quiet handheld massager, lcd touch screen with 10 heads jamgym massage guns offer what's known as percussive or vibration therapy. this type of massage provides rapid bursts of pressure into the body's muscle tissue (hence the rippling effect of massage guns) as its head oscillates back and forth. for those who find foam rollers uncomfortable or too manual of a process, massage guns offer a more streamlined, automatic solution.