GW-850 Studio Z UHF Wireless Mic

Multipurpose Wireless Microphone with Rechargeable Receiver
Receiver specifications:

• Frequency Range: 560-590Mhz
• Built in Lithium Battery: 3.7V/450nAh
• Signal/Noise Ratio: > 98dB
• Channel Rejection Threshold: > 90dB
• Spurious Response Rejection: > 90dB
• Reception Sensitivity Higher than 5dBm

Microphone specifications:

• Power Requirements: 2 AA batteries 1.5V (included)
• Modulation Type: FM
• RF Output: 15mW