High quality, no trouble in set-up universal remote replacement for smart TV remote control. Works right out of the box without programming or set-up (includes instruction manual). Requires 1 x CR2032 battery to operate (battery not included). Flexible buttons with no delay in pressing. Each replacement remote is rigorously checked to ensure proper function. Fast transmission response time of 0.3 seconds. Ergonomically designed with an ABS plastic body and rubber buttons for comfort and durability. Provides a better viewing experience. Compatible with TV 4K (3rd generation), TV 4K (2nd generation), TV 4K (1st generation), and TV HD. Also works with select LG, , Westinghouse, Insignia, and Toshiba TVs. Not compatible with any ROKU TV. This is an IR remote (not Bluetooth or RF); line-of-sight is required. Does not support Siri, voice control, or touchpad functions. Not intended for use with A-Pod or H-Pod devices.