Core Features:Android 13TEE hardware encryption solution7 inch 1024 x 600 capacitive adjustable touch screenSupports Yealink Bluetooth Handset BTH88 OptionalOptimal HD audio, Yealink Noise Proof TechnologyYealink's SDK Software Development KitBuiltin Bluetooth 5.0 and Dual Band 2.4G/5G WiFi2 x USB 2.0 ports USB TypeA\TypeC? for USB headset, media and storage applications16 VoIP accountsUp to 10party audio conferencingDualport Gigabit Ethernet, supports PoEWall mountableSupports up to 3 Expansion Module EXP55Supports Yealink/Unify Square Device Management PlatformHandset with hall switch