The Sennheiser SKM-100 G2 A is a professional handheld wireless transmitter microphone from the Evolution Wireless G2 100 series, operating within a specific UHF frequency band denoted by "A". This system combines a robust handheld transmitter body with a high-quality integrated microphone capsule, creating a complete wireless vocal microphone for live performance, worship, and presentation. The transmitter utilizes analog transmission with true diversity reception to deliver clear and stable audio with good resistance to dropouts. It is built with a durable casing that can withstand the rigors of stage use and features a clear LCD screen for monitoring frequency, battery life, and audio settings. The integrated capsule is typically a dynamic or condenser design tailored for vocal performance, offering a cardioid or supercardioid polar pattern for effective feedback rejection and focused pickup.

A significant feature of the Evolution G2 series is its user-friendly operation, which includes an automatic frequency scan function that quickly identifies and selects a clear channel within its operating band, simplifying setup. The transmitter offers adjustable audio gain and selectable RF power output, allowing performers or technicians to optimize performance and battery life for the venue. It is powered by two standard AA batteries, providing extended operational time, and includes a reliable battery life indicator. The familiar handheld form factor provides a comfortable grip and allows vocalists to use the microphone dynamically, working the proximity effect to their advantage.

The SKM-100 G2 A represents a reliable and accessible entry-point into professional wireless systems, balancing performance with straightforward operation. Its analog transmission provides the low-latency audio critical for live monitoring, and the series' reputation for durability makes it a popular choice for touring musicians, speakers, and installed sound applications. The combination of automatic frequency management, integrated microphone quality, and robust construction makes it an effective and practical wireless solution for a broad range of vocal applications where dependable, clear wireless audio is required.