Consistently excellent performance has made Beta Wireless Microphones the choice of top performers worldwide. Renowned for their warmth, presence and sensitivity to fine detail, they feature maximum isolation and minimum off-axis coloration. Vocal and instrumental microphones available with Analogue or Digital Wireless Receivers The Analogue Wireless Receiver provides improved linearity and frequency response for up to 12 compatible channels per group with group and channel scan for easy set-up. Features:  Up to 12 compatible systems  Microprocessor-controlled internal antenna diversity  One touch QuickScan locates the best open frequency  1/4" and XLR audio outputs  Two color audio status indicator LED  BLX2 Beta58A-Handheld Transmitter features:  Power and battery status LED  Adjustable gain control  Quick and easy frequency matching  AA batteries (included) provide up to 14 hours of continuous use  300 ft. (100 m) operating range (line of sight)  Set consisting of:  1 x BLX4 Receiver  1 x BLX2 Beta58AHandheld Transmitter Warranty 2 years.