Lectrosonics UCR401 BLK19 Reciever

Block 19: 486 to 511 MHz
Digital Hybrid Wireless®
SmartSquelch™ for noiseless muting
SmartDiversity™ for enhanced RF reception
256 selectable UHF frequencies
DSP-based pilot tone squelch
LCD display with spectrum scanner
Balanced XLR audio output
Two AA batteries or DC power
Compatibility with analog transmitters