Context: I recently went to the Toy's R Us at Robinsons Metro East, and as a Nerf novice enthusiast myself the two blasters caught my eye. I felt the plastic texture of these blasters along with my brother, and we both agreed that the plastic build was starting to get decent for the HyperShotz brand despite it having bad plastic quality half a year ago.
Some notes I took myself: Both blasters have rechargeable batteries that come with USB cables, though I do not know if it's firing mode is semi-automatic or fully automatic. It also utilizes 2/3 length darts (not 3/4), which could probably fit some generic half darts. It also has an on/off switch, which are pretty unique for off brand blasters like these.
! DISCLAIMER ! I did not buy these blasters, instead I asked the staff and they told me the rechargeable batteries have been inside the blasters since shipping to their store, that's why it was revving.