This is a 16 character x 2 line organic EL display (OLED, green, model number SO1602AWGB-UC-WB-U) manufactured by Sunlike Display Tech. Corp. I purchased it for electronic hobby projects, but I haven't had a chance to use it, and it has been stored at home. You can display any characters by controlling it with a microcontroller (Arduino, PIC, etc.). Because it's an organic EL display, the characters glow, providing good visibility in dark places. It also has a wide viewing angle. Features: ・High contrast and excellent visibility. ・Wide viewing angle. ・3.3V single power supply operation. ・I2C interface. Please handle the flexible cable on the back with care, as it is easily damaged. Main specifications: ・Type: Character ・Power supply voltage min.: 2.4V ・Power supply voltage max.: 3.6V ・Display format: Positive ・Emitting color: Green ・Number of characters: 16 ・Number of lines: 2 ・Total number of characters: 32 ・Interface: I2C ・Width: 80mm ・Height: 36mm ・Thickness: 8.5mm An included instruction manual is available, and you can also refer to it at: https://akizukidenshi.com/catalog/g/g108276 Thank you for your consideration.