The SKM 100 G4-B is a robust and high-performance handheld transmitter designed for integration with the Sennheiser evolution wireless G4 100 Series systems. Developed to meet the demands of professional audio environments, the SKM 100 G4-B offers compatibility with a wide range of Sennheiser microphone capsules, including the e 835, e 845, e 865, e 935, and e 945, allowing users to configure their audio solution to suit specific vocal or speech requirements. Housed in a lightweight yet durable aluminium body, the transmitter ensures consistent audio signal transmission across a wide range of applications, such as live sound reinforcement, corporate presentations, broadcast, and stage productions. Its functionality supports up to 20 compatible channels within a 42 MHz bandwidth and 1680 tunable frequencies in the UHF spectrum, ensuring flexible frequency management even in congested RF environments. Infrared synchronisation and advanced linking options streamline setup across multiple receivers, while its RF output power of up to 30 milliwatts and a transmission range of up to 100 metres contribute to stable and reliable operation. The SKM 100 G4-B combines technical efficiency with practical deployment, making it a dependable choice for system integrators, rental companies, and AV professionals who require scalable and adaptable wireless microphone solutions.