OK OBBS Pro is a modification of OBS Studio licensed from (Open Source Software Suite for Recording and Live Streaming).

Written in C, C++ and Qt, OBS provides real-time source and device capture, scene compositing, encoding, recording and broadcasting. Data transmission is primarily done via the Real-Time Messaging Protocol (RTMP) and can be sent to any RTMP-capable destination, including many preset streaming sites such as YouTube, Twitch, Instagram, and Facebook.

The main user interface is divided into five sections: Scenes, Sources, Mixer, Transitions, and Controls. A scene is a group of sources, such as live and recorded video, text, and audio. The mixer panel lets users mute audio, adjust volume with virtual faders, and apply effects by pressing the gear next to the mute button. The top half has a live video preview for monitoring and editing the current scene. The user interface can be switched to various themes, including dark and light themes, depending on user preference.