There are some significant features of the massager, one of the most important of which is that it is rechargeable. The package comes with the rechargeable battery, attachment pads, and the power adapter. One can use the Tens Unit Electronic Pulse Massager as per the requirement and the time level set in it. There are as much as eight auto modes in which the massager works and it also includes the pause button to take a break while massaging. The timer in the device can be set from 10 minutes to as high as 60 minutes with automatic shut off as the time limit is reached. The device can also be configured to the default setting of 20 minutes.