Number of speeds
The number of speeds at which the device is capable of operating. In many classic vibratory massagers (see "Type"), where there are no special programs, this indicator actually corresponds to the number of operating modes. Anyway, the intensity of the impact directly depends on the speed; which means that the more speeds, the more options to choose from. On the other hand, the specific speeds and how they are suitable for specific purposes, it still does not hurt to clarify.
Number of belts
The number of belts included in the delivery. It should be noted that belts can be equipped not only with classic vibration simulators, but also with vibration platforms (see "Type").
Different types of belts are designed for different types of massage; accordingly, the more of them in the kit, the more options are available. At the same time, before buying, it is advisable to clarify what kind of belts the vibrating massager is equipped with. Also note that if necessary, belts can, usually, be purchased separately.
Country of origin
The country that is the "homeland" of the brand under which the vibratory massager is released. Note that the actual place of production may be located in a completely different country; and the country of origin of the brand is indicated in order to make the product more attractive to the buyer. On the other hand, in the modern world, the quality of a product depends not so much on the country, but on how this quality is controlled by a particular manufacturer. Therefore, when choosing, you should focus primarily on the brand, and not on the country.
Dimensions
The dimensions of the equipment in the assembled and ready to work state. It is important to note that in fact more space is needed for comfortable and proper operation of the simulator.