Very quiet and easy e - This portable hand massager is not really loud, very quiet and effective. An on/off switch design, easy e, just press it gently and you can solve your pain yourself. Requires 3 AAA batteries, no need to wait for charging, saves time and energy (battery not included). Widely used - to massage different body parts such as legs, hands, shoulders, neck, etc. Perfect design: The mini electric massager is small and light, very convenient for small muscle aches and pains when you don't have time for one Have overall massage. Small enough for you to take with you when traveling. Portable and Wireless - Small enough to fit in the small pocket of your bag, portable for traveling, hiking or camping and many other things that need a moment of relaxation. Colorful LED Light - This electric muscle massager has built-in colorful LED lights, brings a unique visual experience when you use it in the dark.