ZKTeco IWB65B - Convenient for virtual meetings: Built-in 13-megapixel UHD camera and 6 microphones array with 8-meter pickup distance, providing clear audio and video experiences; • Smart Whiteboard Software: User-friendly, more efficient, and creative; • 4K Ultra HD screen and infrared touch: Improved image sharpness, simultaneous writing, and commenting without getting messy; • Collaborative Presentations: Real-time screen sharing between devices with wireless software; • Dual OS: Built-in Android system and Windows (Optional); capable of installation of multiple software. Model: ZK-IWB65B(S)  LCD Screen Size: 65-inch  Screen Type Backlight : D- LED  Display Parameters: Frequency 60Hz