Condition: 100% Brand New Item Type: One for Two Wireless Microphones Material: Metal + ABS Color: As Pictures Shown Carrier Frequency Band: 610-690MHz UHF Adjustable (500-999MHz) Frequency Stability: ±0.005% Audio Sampling Mode: 48KHz Frequency Response Range: 50Hz~18KHz Frequency Range: 500~999MHz RF Bandwidth: 60MHz Frequency Points: 24 Signal to Noise Ratio: 96dB Reception Sensitivity: -95dBm Distortion: 0.05% Dynamic Range: 96dB Receive Automatic Scanning Fuction: Support Theoretical Transmission Distance of Open Environment: 20-50 m/ 65.6-164.0 ft Applicable Equipment: Mobile phone and computer can be decoded and used directly. Power amplifier and stereo are connected to usb port. Audio output is needed in addition. Product Advantages: U Band FM/ID Code Frequency Lock, Prevent Serial Frequency/Built-in Decode/Remote Receiving/Receiver Direct USB Power Supply Batteries: 4 x AA Batteries (Batteries are not included) 1、Plug and play, a wider frequency range, less interference, easily perfect display of your voice. 2、It adopts strict control of the electronic circuit to capture rich, full sound from the source directly in front of the microphone. 3、USB receiver supports a variety of devices, as long as the device with USB port and microphone interface, all can be connected to use. 4、Strong anti?interference ability, stable signal, receiving distance of 50m(164.0ft) without strong interference. 5、Unique digital ID code pilot frequency technology, completely solve the same frequency crosstalk phenomenon and with ultra?low audio delay. 6、Suitable for a variety of activities, such as karaoke, live performances, meetings, churches, schools, auditoriums, party events, etc. 2 x Microphones 2 x Wind Cotton 2 x Microphone Protection Ring 1 x Audio Cable 1 x Adapter 1 x Manual 1 x USB Receiver