Sennheiser Wireless Handheld Lavalier Microphone System

Overview

The Sennheiser 509745 is a wireless handheld lavalier microphone system designed to provide performers and presenters with freedom of movement while maintaining clear and consistent audio quality. It includes a dynamic handheld microphone and a bodypack transmitter paired with an omnidirectional lavalier mic, making it versatile for vocals, spoken word, or instrument use. The system supports up to eight hours of operation on standard AA batteries and maintains a stable connection up to 100 meters, ensuring reliable performance in various live settings.

Key features

• Dynamic e 835 handheld microphone delivers strong vocal presence and resists feedback for clear sound on stage.
• ME 2-II lavalier microphone offers hands-free convenience with an omnidirectional pickup pattern for natural audio capture.
• SK 100 G4 bodypack transmitter easily pairs with the lavalier mic or instrument cables for flexible use.
• Half-rack metal receiver with true diversity reception minimizes dropouts and ensures stable signal quality.
• Infrared synchronization allows quick and simple pairing between transmitter and receiver.
• Wide 42 MHz tuning bandwidth with 1,680 selectable UHF frequencies supports interference-free operation.
• Frequency coordination enables up to twelve linked systems to operate simultaneously without clashes.
• Long-range wireless link up to 100 meters supports freedom of movement on stage or in large venues.
• Up to eight hours of runtime on standard AA batteries provides extended use without frequent replacements.

Key specs

• Microphone type: Dynamic handheld (e 835) and omnidirectional lavalier (ME 2-II)
• Transmitter: SK 100 G4 bodypack
• Receiver: Half-rack metal chassis with true diversity circuitry
• Frequency range: 1,680 UHF frequencies across 42 MHz bandwidth
• Operating range: Up to 100 meters
• Battery life: Up to 8 hours on standard AA batteries
• Channels supported: Up to 20 channels in optimal conditions, 12 linked systems with frequency coordination

Connectivity and compatibility

This system is designed to integrate seamlessly with a variety of audio setups. The bodypack transmitter supports connection to the included lavalier mic or other compatible instrument cables, while the receiver outputs clean audio signals suitable for mixing consoles, amplifiers, or recording devices. Its wide frequency range and multiple selectable channels make it adaptable to crowded RF environments, ensuring compatibility with professional stage and broadcast equipment.

Ideal uses and environments

The Sennheiser 509745 system fits well in live music performances where artists may switch between handheld and hands-free microphones. It also suits corporate presentations, theater productions, worship services, and video production where reliable wireless audio and discreet microphone options are essential. Its robust build and long battery life make it a strong choice for touring professionals and local event organizers alike.