Android 137 inch 1024x 600 IPS capacitive adjustable touch screenOptimal HD audio, Yealink Noise Proof TechnologyFlexible Bluetooth Wireless Handset BTH58Supports up to 3 Expansion Module EXP502 USB Type A port, supports USB headset1 USB Type C port,supports Device Mode Coming SoonBuiltin Bluetooth 5.2 and Dual Band 2.4G/5G WiFi 5Supports Microsoft TAC YMCSWall mountableDualport Gigabit Ethernet, PoE supportHybrid mode