For Amazon Fire TV Cube (2nd gen), for Fire TV Stick (2nd gen), for Fire TV Stick 4K, for Fire TV Cube (1st gen), for Amazon Fire TV (3rd gen, pendant design). Not for Amazon Fire TV (Gen 1), not for Amazon Fire TV (Gen 2), not for Amazon Fire TV Stick (Gen 1), and not for Amazon Fire TV Edition smart TVs.
eBay