Main Features:  -Voice Spread Widely: it can be heard within 5 Meters.  -Al Intelligent Noise Reduction: using independent DSP noise reduction chip, with Al intelligent algorithm, intelligently recognizes human voices and eliminates unnecessary noise.  -Standard Extension Microphone: the sound system adopts professional conference acoustic algorithms, with two 2.5-inch high-fidelity speaker units to present real human voices.  -4K Ultra-clear Source Code Output: supports multiple resolutions, it works smoothly as face-to-face communication no matter in what network condictions.  -Variety of Devices Fitment: the USB-C or USB-A interface is directly connected to the laptop, compatible with a variety of operating systems and conference software.  -Privacy Protection: the camera is equipped with a flexible physical occlusion switch, which can be turned off with a light slide, which effectively protects privacy.  -Support Three Installation Methods: desktop mode, wall-mounted mode, and tripod mode.  -Support High-fidelity Bluetooth 5.0.    Specification:  Power: 10W;  Voltage: 12V/220V;  Frequency: 130-20kHz;  Camera Pixels: 8 Million;  Camera Pield of Piew: FOV120°;  Video Resolution: 4K;  Bluetooth: Bluetooth 5.0;  Video Output Format: H.264, MJPEG, YUY2;  Field of View Adjustment: Zoom, Up/Down/Left/Right Adjustment;  Sound Pickup Distance: Host Microphone 5m, Extended Microphone 3m;  Plug: CN;  We will send you an adapter which according to your country;  Dimension: Product Weight: 3.00 kg;  Product Size (L x W x H): 70.00 x 8.70 x 9.70 cm;    Package Contents:  1 x Expansion Microphone;  1 x Base;  1 x Remote Control;  1 x Wall-mounted Bracket;  1 x 5m USBC-C Cable;  1 x 7m Extension;  1 x Microphone;  1 x USBA-A Cable;  1 x USB C-A Adapter;  4 x Screw;  4 x Screw Expansion Rubber Plug;  1 x Manual;  1 x CN Plug(We will send you an adapter which according to your country)