A personal massager is a vibrating tool used to work knots out of muscles. Vibration at high frequency against muscles / nerves helps in removing stiffness arising out of overstretch or tiredness of the muscle. Thus personal massager is a great implement to get fast relaxation of tired muscles and pain relief.
A general purpose massager is a vibrating pad or shaft which can be pressed against the muscles needing the massage. However, foot massager are very common massagers which are specially designed to give massage to tired foot soles. Some massagers also have built in acupressure pads or points thus increasing massager efficacy while others use water jet to provide the same effect.
Infrared massager use heat generated from infrared radiations to get better results. Pulse Massager use electrical pulse to generate vibrations. They have less frequency but higher