Model: U20 | Wireless Technology: UHF Digital Frequency Conversion Technology | Frequency Selection: Free switching of 100 frequency points to avoid serial frequency | Transmission Distance: 50m acceptance distance | Sound System: SHIDU sound amplifying system | Microphone Core: Imported professional moving-ring cores | Build & Material: Metal mesh with electroplating process (anticorrosion and resistance) | Battery Capacity: Built-in 750mAh polymer battery for safety and durability | Compatibility: Dual wireless microphone support, suitable for any plug-in speaker device
