I ordered the master mod controller for the hubby for Father's Day. I ordered may 21st and it didn't arrive till June 18th after having to call and hope that someone answered the phone a few times. There were no instructions with the controller. After watching numerous YouTube videos and using the instructions on their web site the controller did NOTHING :/ also had a rechargibl battery in the back but no charger. I specifically wanted the back where I could change the batteries. Customer service is... Well... IF ur lucky enough for someone to answer. Sucks. WILL NOT DO BUISNESS WITH AGAIN!