A native, high-quality Microsoft Teams business phone of the highest class, featuring a large, colorful touchscreen and an optional expansion module. Microsoft certified for Microsoft Teams, in black. Screen diagonal: 5 inches with a resolution of 1280 x 720 (HD720), touchscreen: yes. PoE: yes, Wi-Fi: no, Bluetooth: yes. Headset connection type: RJ-9, USB. Android OS 9. Integrated dual-band Wi-Fi and Bluetooth. Easy installation thanks to PoE. This network-capable device is powered via Power over Ethernet (PoE) through the LAN cable. The main advantage of PoE is that you do not need a power supply cable, allowing you to install Ethernet-connected devices even in hard-to-reach places or in areas where many cables would be disruptive. You save on installation costs and can increase the reliability of connected devices by using a central uninterruptible power supply (UPS) if desired. Navigate elegantly and efficiently thanks to the touchscreen. Find phone numbers, addresses, and notes in no time and quickly move through the menu structure to change your device settings: the integrated touchscreen significantly simplifies all of this. It enhances both navigation and the overview of stored information, thus promoting your efficiency. Not to mention, the device looks professional with the touchscreen and no paper inserts, and is elegantly operable.