1、Clear and loud sound of the handheld microphone, without any static or hum. 2、This handheld wireless microphone kit is perfect for karaoke, weddings, public speaking, and any other occasion where you need to amplify your sound. 3、The small size of the receiver makes it easy to take your handheld wireless microphone anywhere. 4、Suitable for bars, mobile discos and karaoke, as well as professional singers for home use. 5、Long service life, not easy to damage, you can use for a long time. Item Type: Microphone Frequency Stability: ≤ ±10ppmModulation Method: FMAudio Response: 40-16000HzDynamic Range: >105dB (A weighting)Comprehensive Distortion: ≤0.5% (@1KHz)Audio Processing Method: Dynamic compression and expansion technologyWorking Temperature: 0°C to +50°CFrenquency: 724.9~753.4MHz, 737.8~767.5MHz, 728.9~754.2MHz, 739.4~763.4MHz (optional) ReceiverOscillation Mode: Quartz crystal oscillationAudio Output Level: 0-3mVAudio Output Impedance: 600ΩPseudomorphism and Harmonic Suppression: ≥85dBWorking Power Supply: AC 12V-15V/200mA MicrophoneOscillation Mode: Quartz crystal oscillationFrequency Stability: ≤ ±10ppmMaximum Modulation: ±50KHzMaximum Output Power: 30mWMaximum Input Sound Pressure: 130dB SPLHarmonic Radiation: <-55dBcBattery: 2 x AA batteries (NOT included) 2 x Microphones 1 x Receiver 2 x Anti-roll Rings 1 x Power Adapter 1 x Audio Cable 1 x User Manual 2 x Holders