HDMI 2x1 Multi-Viewer, a 2-screen splitter. My purpose for buying this was to split the screen because I only have one TV and wanted to watch TV while playing games. Specifically, I bought it to watch TV while automatically running a game, as it violates the game's rules to leave the screen while using macros to automatically move game characters. While I achieved my goal, I no longer play games, so I no longer need this device. While using this device, the game's background music played, but I sometimes couldn't hear the character's dialogue. The cause is unknown, possibly due to the TV's speaker performance, and it's probably not a malfunction. The included accessories are all shown in the images, and a Japanese instruction manual is also included. An HDMI cable is not included. Please understand that this is personal management and amateur inspection, so there may be unnoticed stains or scratches. Due to recent return troubles, please refrain from claims and returns. I am not responding to price negotiations, but I plan to lower the price at my own timing, so please purchase at a price you are satisfied with. Shipping is planned via "Yu-Yu Mercari Delivery," but please note that other shipping methods may be used.