Handheld wireless system from BLX series that contains a BLX4 single-channel receiver, a BLX2/PG58 handheld transmitter, a microphone clip, a power supply, and 2 AA batteries. Handheld microphone transmitter features an integrated PG58 microphone cartridge and lightweight, rugged construction, delivering wireless audio with professional clarity and reliability. It offers up to 14 hours of continuous battery life with 2 AA batteries, and -10dB gain attenuation. Single-channel receiver with microprocessor-controlled internal antenna diversity features a two-colour audio status LED indicator, and a XLR and 1/4" output connectors. Frequency: 518-542 MHz