What are the parameters of the massage gun?

From the actual needs of users, whether a massage gun is good or not can be roughly seen in the following three aspects.

Depth: Is it possible to hit the deep layer of the muscle and hit it in place? Here we should pay attention to the amplitude of the massage gun.

Motivation: Is it strong enough? Here we focus on the motor of the massage gun.

Ease of use: Is it easy to use? Will there be massage blind spots when operated by one person? Here we focus on the product design of the massage gun.