Rechargeable UHF Wireless Dual Microphone System for Karaoke and PA

System / Signal

• Wireless technology: UHF (Ultra High Frequency) transmission — stable, interference-resistant audio
• Channels / Mics: Dual-channel receiver with 2 handheld wireless microphones included
• Frequency band / Range: UHF bands (e.g., 500–600 MHz or around 900 MHz depending on model)
• Operating range (transmit to receive): ~30 m up to ~100 m (100–300 ft) in open space
• Modulation: FM (frequency modulation)

Audio / Performance

• Microphone type: Dynamic handheld microphones
• Polar pattern: Usually cardioid / unidirectional — reduces background noise
• Frequency response: Roughly 40 Hz – 18 kHz
• Signal-to-noise ratio / Distortion: S/N ratio > 85–95 dB; THD < 0.5–1%

Power & Battery

• Microphone power source: Rechargeable lithium-ion batteries (or sometimes AA depending on model)
• Receiver power / charging: AC adapter or rechargeable battery, varies by model
• Typical operating time: 5–8 hours of continuous use per full charge

Outputs / Connectivity

• Audio output from receiver: ¼" (6.35 mm) jack — compatible with amplifiers, PA systems, mixers, karaoke machines, speakers
• Compatibility: Works with karaoke machines, PA systems, amplifiers, mixers, powered speakers

Build & Use Case

• Microphone body: Metal housing, durable for repeated use
• Use cases: Karaoke, live singing/performances, public address, DJ events, church services, parties, weddings, conferences