microSDHC does not support properly, out of four only one did not give a card error, but the recording was interrupted after 5-10 seconds. (Later I already found on the site and in the reviews the info that the flash drive should have a speed of at least 30Mb / s) I put microSDXC from another action camera, everything worked, but a maximum of 2k, I resigned myself to go on vacation and during the rest the card glitched and I lost two days of video ((( I bought a Samsung microSDXC EVO Plus card, but I'm already afraid to shoot something on it . I'll use it for a couple of months and ate my review.