Features A High Level of Convenience and FlexibilityMove unimpeded when performing without loss of sound qualityConvenient And Easy to UsePlug and play solution for easy setupUHF ultra high frequency SystemsSelectable UHF frequencies for interference free performanceWireless Dynamic MicrophoneClear transparent audio with full frequency responseVersatile Compact DurableAllows multiple wireless microphones used simultaneouslyMetal Mic HeadABS Plastic Material BodyOffers style and durability Specification Mini Wireless Receiver Metal Dimension 45 x 104 x 20mmBattery Life Up to 6 hrsRecharging Time About 1 hour 5V 1A Handheld Microphone Metal Dimension 250 x 48 x 34mmSound Cartridge DynamicCarrier Frequency 500KHZFrequency Range 200mHz 700mHzSNR Signal to Noise Ratio 90dbBattery Type 2 x AA Size NOT INCLUDED Working Time Up to 10 hrs Here are some warm tips for use 1 Please do not hold the bottom of the mic where the antenna is positioned to avoid signal transmission 3 Please do not hold the mic head directly to the speakers otherwise it will form a mic feedback and cause hassle Package Included 2 x Wireless Microphone1 x 3 5mm Receiver1 x Charging Cable1 x Audio Cable1 x 6 5mm to 3 5mm Audio Interface