Can I use 2 X 2 Box Configuration Coil Array with M1 model? Or is it only for C5? The product description doesn’t specify.
Yes, but it drains the battery faster. I also would not use it on intensities higher then 10-12, because based on the battery capability to supply current, the signal may become a bit degraded. With external power supply or power-bank this should be fine at any intensity.
Thank you for clarifying!