So I'm sure most if not everybody knows the famous "bum-buh-bah" startup sound that the I2 gives off when powering on..... well recently I came across an I2 that is completely mute?! I power the aircraft on and it is completely silent, goes through the startup sequence and then once connected to the controller, starts flashing green and is ready to takeoff, engines fire up no problem and drone has practically no issues..... Did I by chance miss a setting somewhere for this or did I just stumble across an odd bird?