ONN replacement remotes require two AA alkaline batteries; batteries are required but not included.
Descriptions suggest using them to navigate discs and settings, control playback and menus, and keep one as a spare to replace a worn or missing remote for movie nights.
Listings commonly list disc and menu navigation plus playback controls such as Play, Pause, Skip, and Scene Skip to support smooth viewing.
Listings indicate these remotes use infrared (IR) for wireless communication.
Listings call them ideal replacements for worn or missing remotes and suggest keeping one as a spare for movie nights.