Wireless Microphone

The ROSI Sturdy Wireless Vocal Microphone System is a professional-grade dual-channel audio solution designed for clarity and reliability in vocal performances. Often marketed as “The Voice of Experience,” this system utilizes UHF (Ultra High Frequency) technology to provide a stable, interference-free connection compared to standard VHF or 2.4GHz systems.

Description

Key Product Features

- Dual-Channel System: Supports two independent handheld microphones operating simultaneously on different frequencies.
- UHF Technology: Operates in the professional UHF band, which offers superior signal penetration and a longer, reliable range.
- Audio Reference Companding: Features a patented technology that improves audio quality and dynamic range by compressing the signal before transmission and expanding it at the receiver.
- Dynamic Handheld Microphones: Typically equipped with unidirectional dynamic capsules (cardioid) that focus on the user's voice while rejecting background noise.

General Specifications

While specific values can vary by model version, systems in this category generally share these technical standards:

Feature	Standard Specifications
Connectivity	UHF Wireless, XLR/6.35mm Jack Outputs
Polar Pattern	Unidirectional / Cardioid
Frequency Response	Typically 40Hz – 18,000Hz
Operating Range	30m to 100m+ depending on environment
Microphone Power	2 x 1.5V AA batteries per transmitter
Receiver Power	12V DC Adapter
Applications	Karaoke, Church, Meetings, Stage Performances