There are two kinds of fitness massagers on the market now: AC and DC. Massage head is divided into single head and multi-purpose head. The massager with AC power supply is economical and practical, but it can't be used continuously for a long time, generally less than 30 minutes; If the force is too large, the motor load current will surge and burn out the motor. Common DC power fitness massagers include: massage hair comb, massage cushion, finger vibration electric massager, massage cane, etc. Most of them use the eccentric vibration generated by DC motor to massage. The other is to use the strength of magnetic force to make the vibrating plate move. For example, massage hair combs and walking sticks can not only be used for fitness massage, but also have the functions of alarm, call for help, broadcast, lighting and walking sticks. They are good helpers for the elderly, the disabled and the blind.
When buying, you should conduct field tests to see if the strong and weak switches are easy to use. See if its vibration performance meets the quality standards, and the noise should not be too loud, otherwise it will stimulate the nerves.
There are two kinds of massager shells: plastic and metal. Metal ones are more durable, but pay attention to check whether there is leakage. Plastic casing is safer and lighter, but it is not as durable as metal casing. Massager is always in contact with human body, and there can be no leakage, especially AC massager.
It's best to try to check the accessories one by one to see if they are convenient for loading and unloading. Whether it can be effectively used.