Experience true multi-user Touch and ink Make room for everyone with the only touch technology on the market to let your students write, erase, touch and gesture at the same time, across platforms and applications, without interfering with another user's tool choices. The SMART MX series intuitively recognizes what tool you're using, and is smart enough to maintain your pen choice across files and apps, making it effortless for teachers and students to transition between programs. 20 continuous touch points, plus: Continuous pen touch and eraser differentiation 2 pens Palm erase Zero-bonded glass* NEW in MX-V4: Faster, more accurate inking Wi-Fi 6 Bluetooth 5.2 , illuminated central home button USB-C - 65W & 15W, NFC Reader, microphone array, Integrates with new SMART UHD Webcam, 4K Ultra HD, LED 50,000 hours.