WiFi: 2.4G+5G dual-band WiFi (WiFi6) / BT5.0. Note: our projector can support 4K video decode, but output video highest resolution is 1920 1080P. System : ANDROID 11.0. Type : Digital Projector. Fiber Optic Glock Sights For Models 17 19 22 23 24 26 27 33 34 35 38 39 45.