The Professional Dynamic Microphone with Detachable Cord by Emerson Karaoke is an economical solution to have an extra microphone on hand. It’s also the perfect microphone to hand to your rowdy party guests instead of your expensive microphone. Features frequency response: 80 Hz~11kHz sensitivity: 72dB±3dB (1kHz) Output Impedance: 620O +30% (1kHz). Detachable cord measures 4.5mm x 3 Meters. Connector: 6.3mm (1/4 ) to XLR Male. No batteries or assembly required. Manual included. Unisex product. Constructed of plastic electronics. One year warranty. Recommended for boy or girl ages 8 and up. Imported from China.