AI215TR1 AIO Display, 20”~32”, Fitness, <500, NormalBy adminFebruary 2, 2021 21.5” 1920×1080 LED panel ARM RK3399 CPU Android 7.1 10-point multiple touch 0~40 °C operating temperature Dual signal interface with USB 2.0 and 4K HDMI Application: Fitness PDF DownloadE