Sennheiser SK 100 G4 Wireless Bodypack Transmitter (A1: 470 to 516 MHz)

The Sennheiser SK 100 G4 Wireless Bodypack Transmitter is a professional analog UHF wireless bodypack transmitter designed for use with Sennheiser EM 100 G4 receivers. Featuring a rugged all-metal construction, locking 3.5mm input connector, infrared synchronization, and up to 8 hours of battery life, this compact transmitter is ideal for performers, presenters, musicians, and broadcast professionals using lavalier microphones, headset microphones, or instruments in live stage and production environments.

The Sennheiser SK 100 G4 Wireless Bodypack Transmitter is a reliable and versatile professional wireless bodypack transmitter built for demanding live sound, theater, broadcast, presentation, and performance applications. Operating within the A1 frequency band of 470–516 MHz, this analog UHF transmitter is fully compatible with Sennheiser EM 100 G4 receivers and maintains backward compatibility with previous evolution wireless G1, G2, and G3 systems, as well as EW 300 and EW 500 series components.

Designed with a durable all-metal housing for everyday professional use, the SK 100 G4 provides dependable wireless transmission with a fixed RF output power of 30 mW and an operating range of up to 100 meters (330 feet). The transmitter features a locking 3.5mm TRS input connector compatible with lavalier microphones, headset microphones, and instrument cables, making it suitable for vocalists, presenters, guitarists, and performers. Adjustable input sensitivity allows optimization for both microphone and line-level sources.

The backlit LCD screen provides clear visibility of essential operating information, while infrared synchronization enables fast and effortless frequency pairing with compatible receivers. A programmable mute switch helps prevent accidental operation changes during performances. The transmitter operates for up to 8 hours using two AA batteries and also supports the optional Sennheiser BA 2015 rechargeable battery pack with external charging capability.

Compact, lightweight, and highly dependable, the SK 100 G4 is an excellent wireless solution for professional audio applications requiring mobility, flexibility, and proven RF performance.

Key Features

• Professional analog UHF wireless bodypack transmitter
• Compatible with Sennheiser EM 100 G4 receivers
• Frequency range: 470–516 MHz (A1 Band)
• Rugged all-metal housing
• Locking 3.5mm TRS input connector
• Compatible with lavalier, headset, and instrument inputs
• Fixed 30 mW RF output power
• Up to 100 m / 330 ft operating range
• Infrared synchronization with receiver
• Backlit LCD display
• Adjustable input sensitivity
• Programmable mute switch
• Up to 8 hours battery life using 2 AA batteries
• Compatible with optional BA 2015 rechargeable battery pack
• Backward compatible with previous Sennheiser evolution wireless systems