Brand Name: H.T. Model Number: 9V Style: Handheld Microphone Communication: Wireless Use: Karaoke Microphone Place of Origin: China Frequency Range: 200-900MHz Dynamic Range: >105dBm Frequency Response: 40Hz-15KHz±30dB Frequency Offset: >40dB Sensitivity: >98dB Audio output: Mix / Balanced 0-400mV Power Supply: AC 5V 1A Battery: 1.5V AA *2