Is this
Garmin striker plus 4.Plenty of you tube videos on it. Bought one last year and put it in a small cooler bag.Good unit for the money.
Is this it?
Garmin Striker 4 with Portable Kit
https://www.amazon.com/dp/B017NI1IJI/ref=cm_sw_r_awdo_navT_g_WENSHBDWTY1HBQJMWM5K