Last month I bought 3 x Epocs, all three have failed after only 5 days of use.
The first one turns off only a few seconds after turning it on, it has a 100% charged battery
The second and third devices stopped working, the F7 electrode did not connect doing all the correct procedures, the rest of the electrodes work correctly.
I am in the middle of some big projects and the times are very short counting the delivery times of the devices. it has been a bad experience with this Epoc X device model