Supports 2.4 GHz Wi-Fi (802.11 b/g) and Bluetooth 5 (LE), with onboard antenna. Onboard Micro-SD card slot provides expanded storage, fast data transfer and flexibility for data logging and media playback, simplifying circuit design. Benefits of using the AXP2101 include efficient power management, support for multiple output voltages, charging and battery management functions, and optimization of battery life. Built-in 512 KB and 384 KB ROM, stacked with 8MB PSRAM and external 16 MB Flash. Onboard 1.8-inch capacitive touch HD AMOLED screen, 368x448 resolution, 16.7 M colors, can clearly display color pictures. display panel:AMOLED display size:1.8 inches display resolution:368 x 448 pixels Display colors:16.7M Display brightness:350cd/m² Contrast:100000:1 Communication interface:QSPI Driver IC:SH8601 Touch:support Touch IC:FT3168 Colour:As Shown Material:ABS+LCD Package Contents: 1 * Display 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.