Wireless Microphone, 360-degree mic coverage, 256ms acoustic echo cancellation, Full duplex, Dynamic Noise Reduction (DNR), Connecting by 3.5mm earphone plug, No need driver; clear, unmixed and not harsh sound quality, Elegant business appearance.

Hikvision DS-D5B65RB/D 65-inch 4K Interactive Flat Panel W/ Camera and Microphone array, 65 inch LED Backlight, 3840 × 2160@60 Hz, 350 cd/m², Color Depth: 10 bit, Contrast Ratio: 4000 : 1 (Typ.), Processor: A72*2 + A53*4, 1.8 GHz, Memory: 4 GB, Built-In Storage: 64 GB, Max 45 point multi-touch, Built-in 2 × 16 W loudspeaker, 8MP Camera, Smart switch between Android system and OPS, Omni-directional 6-array layout, Power Consumption: ≤ 320 W (full load).