Shenzhen Richsat Electronics. Co. Ltd. is a 3 year old Shenzhen-based firm specialising in Android set-top boxes. Their entire range is on display here and the newest model features an RK3128 processor, with a WiFi antenna, ability to be controlled through IR or WiFi, costing between US$20-26 depending on model. Another STB features an Amlogic S905 CPU. The LED projector uses RK3128 CPU, and costs US$60 for a resolution of 800x480px display with 1500 lumen brightness.