USB Massager USB hand warmer performance, used in computer power supply, convenience and energy saving. A full body massage. Vibration massage-grain design, practical applicable to persons working on computers for a long time, relax body muscles fatigue. UBS massage and warm with separate switch, can be used individually or simultaneously. This product, break the current concept of warm massage as one solution. Appearance is cute, small and light, convenient collection. 1. using human engineering principle and design of hammer vibration massage, different parts of the human body massage, side, back, arm, waist, hips, thighs, legs, feet. 2. carefully modified massage heads, with needle-shaped, convex round massage head, broke the traditional massage hammer hammering-only functions, increase of acupressure and acupuncture and massage functions. 3. more humane type switch designs and make your operation more convenient and efficient. Make your massage more comfortable. 4. master massage specifically designed hammer, can make a focused massage effect, providing easy and effective massage and also very effective buffering ability, high performance, easy to operate without noise