Voltage:   AC 220V/110V
Built-in Rechargeable Battery: 12V 1.2AH
Output Power: 20W(maximum)
T. H. D.: < 5%
Speaker:   6"
Input Signal: Wire/wireless Mic, Audio(USB)
Frequency Range: 175MHz-276MHz(Wireless Mic)
Sensitivity: 10dB
S/N: >60dB
Oscillating: Quartz
Wireless Effective Range: 35M

Suitable for Teaching, assembly, Conference, Church, Parade, Lecture, Auction, Sale promotion, tour guide, assembly, speech, etc.