Sennheiser Pro Wireless Handheld Microphone Base Set

The Sennheiser 509786 is a wireless handheld microphone base set that gives presenters, trainers, and technical staff a dependable way to capture speech in conference rooms, lecture halls, houses of worship, and event spaces. Built on the G4 300 Series platform, the system offers 88 MHz of tuning range so you can deploy up to 32 channels without worrying about frequency congestion in busy RF environments.

Inside the box you will find the EM 300-500 rackmount receiver, the SKM 300 G4-S handheld transmitter, a rackmount kit, and the necessary power and antenna accessories. The handheld accepts any compatible Sennheiser capsule, which lets you match the microphone’s sound to the voice or the room. Three selectable RF power levels—10, 30, or 50 mW—make it easy to balance battery life against long-distance coverage, and the system holds a stable link at distances up to 100 meters (330 feet).

Installation takes only a few minutes. Once the receiver is in the rack and connected to a network switch, Sennheiser Control Cockpit software can monitor battery status, RF strength, audio levels, and firmware updates from a laptop or tablet. This network control is especially helpful for IT departments and AV teams responsible for multiple rooms or larger campuses.

Whether you are outfitting a corporate boardroom for weekly meetings, giving instructors a worry-free setup for daily classes, or running a rental inventory that has to adapt to different venues, the Sennheiser 509786 provides the flexibility, range, and management tools that keep audio clear and teams productive.

• G4 300 Series platform with 88 MHz bandwidth for up to 32 simultaneous channels
• Transmission range extends to 100 meters / 330 feet in open space
• Three RF power settings: 10, 30, or 50 mW to match venue size and local regulations
• Integrated network port allows remote monitoring and control through Sennheiser Control Cockpit
• Includes EM 300-500 receiver, SKM 300 G4-S handheld transmitter, rackmount kit, and accessories
• Handheld accepts a wide range of Sennheiser microphone capsules, sold separately