I have heard conflicting reports of using bluetooth gps with the spark. My iPad mini doesn't have a gps, so will the bluetooth signal interfere with the remote?
My Apple Watch causes interference if I forget to power it off (even if Bluetooth on phone is already off).
BTW turning "off" Bluetooth in iOS Control Center is not adequate because that only disconnects from current devices but leaves BT antenna on. You need to completely turn off BT in Settings (or switch to Airplane Mode).