1.75-inch capacitive touch HD AMOLED screen with a resolution of 466x466 and 16.7 million colors for vibrant image display. Built-in CO5300 driver chip and CST9217 capacitive touch chip for efficient communication via QSPI and I2C interfaces, minimizing pin usage. Dual digital microphone array for advanced audio algorithms like noise reduction and echo cancellation, ideal for accurate speech recognition. Onboard QM18658 six-axis inertial measurement unit for motion detection and step counting. Onboard PCF85063 RTC chip powered by AXP2101 with a backup battery pad for continuous RTC functionality during battery replacement, along with customizable PWR and BOOT buttons for custom function development. Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Color: Black Material: plastic Package Contents: 1*AMOLED Touchscreen (Without Casing) 1*Speaker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.