— presence of a carrying strap (shoulder or backpack) in the device package. Such a design significantly simplifies the task for the operator and reduces operator fatigue: carrying with a strap is not as tiring as holding the tool in the hands suspended. The shoulder strap is intended to be worn over one shoulder. It helps to better control the trimmer and reduces fatigue, especially during prolonged use. A more complex backpack strap system allows the weight of the tool to be distributed across both shoulders and the back. In such an implementation, the strap will not slip off the shoulder when wearing the trimmer.
