Section 1—PRODUCT FEATURE # UHF, Frequency: 500-890MHz. « Compact receiver, 6.3MM output port. Built-in lithium battery, USB charging. * Automatically matching valuable frequency. * LED screen on handheld microphone. © Several sets can be used at the same time. * Easy for matching different equipment, suitable for classroom, church, outdoor party, home entertainment etc. Section 2—Product Introduction 21 Handheld microphone 1. Capsule 2. LED screen Shows handheld power, signal, frequency and etc. 3.