55’ Premium 4K Large Format Presentation Display Razor-Sharp Resolution of 3840 x 2160 450-nit High Brightness IPS-Type 178-Degree Ultra-Wide Viewing Angles 2 x 10W speakers Wireless Screen Sharing Dual-core MaliG51 MP2 GPU 2 x Dual-core Processors - Cortex A73 + A53 CPU Built-in ViewBoard screen sharing software Chrome, Android, Windows, Mac OS, and iOS compliant VESA Compatible 400 x 400 mm Equipped with twin dual-core processors, 3GB RAM, and 16GB of internal memory, the CDE5520 can play multimedia from internal storage or a USB flash drive.