Sadly UPS decided to play their " smash that box " game and our first unit arrived badly damaged. 1 quick call to Customer Service and they had another one on its way quickly and arranged the pick up of the defective unit. Simply stated I wish the unit was bigger and had the option of a rechargeable battery that replaced the unneeded use of C Batteries. The AC unit for use would be great however our location does not have an outlet close by.