Find the stop control before choosing a remote
Compare onboard buttons, handheld remotes and apps.
Identify which controller does what
A remote may change patterns without providing every function on the device. Read the button diagram and check whether the main device can be turned off directly. Test the controls away from the body as directed in the manual.
Count the batteries separately
USB charging for the device does not tell you how the remote is powered. Make a list of the cable, remote battery and any spare parts required. See the charging connector guide for model-specific cables.
Distinguish a handheld remote from an app
A handheld remote and phone control can have different pairing instructions. If a listing mentions both, check whether they can be used independently and what the device does if the connection drops.