The Aver VC520 Pro2 is an expert-level conferencing system. Equipped with an 24X total zoom, advanced AVer SmartFrame, IP video streaming, single USB installation, and an extended speakerphone solution, the VC520 Pro2 brings you an extraordinary video conferencing experience. The VC520 Pro2 offers balanced and steady audio performance. As the first conferencing system in the industry to deliver a daisy-chain function, the Aver VC520 Pro2 supports either up to two expansion speakerphones or a full duplex microphone array. The inventive speakerphone makes the Aver VC520 Pro2 a flexible option for fit mid-to-large conference rooms. Installing the Aver VC520 Pro2 is super easy. All you need to get set up for a call is a single USB cable. This direct connection not only saves time but also keeps your meeting table tidy and organized. Present products in extreme clarity and demonstrate every detail with an 18X total zoom. The Aver VC520 Pro2 also maximizes team collaboration with smoother video imaging than ever at up to 1080p, 60fps quality.