True graded wireless one-to-four gooseneck microphone

Product Description:The product uses a super-directional high-capacitance microphone capsule, providing excellent sound quality and frequency response. It features a lock-type robust detachable structure, ensuring highly reliable stability. The independently designed new base makes it ideal for high-end conference projects. Broad frequency response, clear and transparent sound, low noise, and extra-long microphone ON/OFF lifespan. When the microphone is turned on, the red indicator light on the capsule illuminates. The goose-neck and base are separable, suitable for large, medium, and small conferences, public communication, teaching, speeches, and other occasions. ID code identification prevents interference and influence from the external environment.Main Features:* Uses UHF 640~830MHz band with PLL frequency synthesis phase-locked loop technology; frequency adjustable, can use 5 sets simultaneously without interference.* Integrated central processor CPU for overall control, combined with a digital LCD interface display; easy operation and outstanding performance.* Multi-stage narrowband high-frequency and intermediate-frequency selective filtering to fully eliminate interference signals.* Audio compression and expansion technology reduces noise significantly and increases dynamic range.* Receiver uses multi-stage high-frequency amplification for extremely high sensitivity.* Ideal working distance: 80 meters.Conference Microphone Receiver Specifications:Operating Frequency: 640~830MHz (adjustable as required)DC Input Voltage: DC 12V 1200mAOscillation Mode: Dual phase-locked frequency synthesis (PLL)Modulation Method: FMMaximum Frequency Deviation: ±50KHzFrequency Response: 60Hz–18000HzSignal-to-Noise Ratio (SNR): ≥89dBLow-Frequency Attenuation: 125Hz 6dBOutput Impedance: 250ΩMaximum Sound Pressure Handling: 135dB SPL 1KHz at 1% T.H.DDynamic Range: ≥105dBS/N Ratio: >98dBT.H.D Distortion: <0.5%T2 Conference Microphone Specifications:Directivity: Capacitor unidirectionalPower Supply: 2 AA batteries, 3VOperating Current: Standby ≤110mA, Speaking ≤180mASensitivity: -40dB ±2dBModulation Method: FMOscillation Mode: PLLDisplay: 2.8-inchFrequency Range: 640MHz–830MHz (adjustable as required)Bandwidth: 30MHzOutput Power: 20mWOperating Time: 8-10 hoursBattery Consumption: <200mAMaximum Deviation: 60KRadiated Power: ≤9dBmReference Speaking Distance: 10cm–50cmOperating Temperature: -10℃ – 45℃Radiated Power: ≤10dBmFrequency Deviation: <0.002Base Dimensions: 111*137*55mmMicrophone Rod Length: 220mmWeight: 1.5kg