Options for this item: Colour:Gray Microphone Type Moving Coil Film Music Mono Color H18M-1/Sand Gray/UHF One Universal Wireless Microphone Craft Craft Semi-Metal, Semi-ABS Material Internal Battery Capacity 1200 MA-2000 MA resistance 3-6 hours signal noise ratio ≥75DB frequency range 60Hz 60Hz -15kHz battery capacity 1200 mAh