They are selected from the FACIAL HAIRS slider in racemenu (the console command, NOT the mod) and works independently of RaceMenu (the mod) and Enhanced Character Edit, but are compatible with them. These are HDT ears and tails from the Tera Elin race and Tera Elin 2 race mods now playable for Skyrim's races (sorry, no beast races).
Tera Elin HDT Ears and Tails - Painted Lady Redone Edition