WM 3300 UL DUAL

Specifications

uHF wireless handheld microphone with receiver
Frequency: UHF 730 - 739 MHz
Working distance: 30m
Receiver built-in battery:
Li-ion rechargeable battery (1800mAh)
Receiver working time: up to 10 hours
Microphone battery: 4 x 1.5V AA batteries 
Microphone display type: LCD