RBR D722 Digital UHF Wireless Microphone USB Charging Karaoke

UHF Digital Wireless Microphone With Recharge Function UHF band 630-660MHz Unique ID pilot technology No crosstalk disturbance Frequency response of 30-20KHz Colorful multicolor TFT reveiver display LCD transmitter display Displays RF, AF, Battery life Auto frequency scanning USB Charging Spectrum display Hi/Low transmitter power adjuster Auto mute handheld Ideal distance of 80 meters Ideal for KTV rooms, conference rooms, lecture & family entertainment Receiver Carrier Frequency - UHF500-980MHz Bandwidth - 30MHz Channel Bandwidth - 300KHz Preset Group - 300 frequencies(50 group) Dynamic Range - 90dB Distortion - <0.5% Frequency Response - 30-20KHz/±2dB Signal/Noise Ratio - 90dB Receiving Sensitivity - -95dBm Power Supply DC - 12V 1A Transmitter Carrier Frequency - UHF500-980MHz Bandwidth - 30MHz Frequency Switch - IR SYNC OutputPower - 30mW Harmonic Radiation - <-50dBc Battery - 1*3.7V Lithium(1200mAh) Battery life - >5 hours * DISCLAIMER: Design, features and specifications subject to change without notice. Some features in videos on the Internet may not be available on all models, please contact us for the TECHNICAL SPECIFICATIONS for a complete list of features by model. This feature list is for reference only, please contact us to verify features and functionality.