Compatibility ：Only Compatible with Major TV brands with Roku TV System: TCL,Hisense,Insignia,RCA,Element,Sharp,Philips,ONN,Sanyo,Westinghouse,JVC,LG,Magnavox,Hitachi,Haier.NC Smart TV With Roku Stystem function. Not Compatible with Roku Stick,box and Player Important Notes: Please note that it will NOT work for Roku TV stick, box, player. This is a infrared remote control, No have voice function Multiple Channel Shortcuts：9 channel buttons has been pre-installed. Press the 1-click shortcut buttons to the most popular channels immediately: Netfli, Slin, Hulu, VUDU, Rok Channel, Dis+, GooPlay, Video, Cineple channel Batteries:Requires 2 AAA batteries (Not included).To ensure optimal performance, it's important to use fresh batteries and avoid mixing old and new batteries or different battery types. If the remote control becomes unresponsive during use, simply reinstall the batteries. And when the remote control starts to lose sensitivity, it's time to replace the batteries (please note that the package does Not include batteries) Long Transmitting Distance : Strongest and stable signal byinfrared technology, precisely controlfar from 30 feet.Fastest responsenot over 0.2 second to your TV.Only fit for Tvs have Roku TVs system, Not fit for other devices. No voice function.Not Compatible with Roku box or stick cannot use Replacement Universal Remote Control For all brands of TV with Roku TV system. Infrared remote control. Not for Roku Stick.