7G This is a dual-channel true diversity wireless microphone. The true diversity reception method is more stable, with automatic signal selection to eliminate blind spots and prevent signal interruptions. This microphone set uses a new shockproof design to achieve excellent low-touch noise performance, lower breath sensitivity, and the acoustic transparency of a fixed polarization condenser microphone, capable of transmitting "completely uncompressed, artifact-free audio with a good dynamic range." It is designed for harsh wireless environments and uses digital audio DSP codec technology to transmit high-quality audio. The HD mode transmission is completely free of compression and artifacts, and the sound quality is comparable to wired microphones. The host also has a monitoring function, allowing real-time monitoring of the transmitter to ensure reliable performance. With exquisite appearance, convenient operation, and a competitive price, it wins market competition with superior professional quality. Suitable for demanding nightclubs, multi-purpose presentation halls, hotels, conferences, and small and medium-sized performances. Product features: ◆Uses a 1U metal chassis that meets the international EIA standard, combined with a novel and simple LCD display, showing elegance. ◆Uses the latest encryption technology for ultra-high-frequency communication, and the latest 5G fast audio signal transmission: 10Gbit/s, delay-free transmission, solving the delay caused by distance, achieving instant transmission. ◆Ultra-wideband UHF 630MHz~690MH, automatic signal selection, true diversity reception of dual-channel receiving circuits. ◆The true diversity receiving system uses two receiving circuits with the same channel, reducing noise and leakage caused by RF interference. ◆Uses noise locking and field strength locking dual noise reduction locking circuit design, effectively preventing RF interference from other microphones and improving the signal-to-noise ratio. ◆Uses 6.3mm unbalanced output and 2-channel XLR cannon balanced output synchronous output design, convenient for connecting various audio processing equipment. ◆The receiver's bright LCD display shows the working channel or frequency, RF, and built-in electronic volume. ◆Features electronic volume adjustment; in the idle state, rotate the VOLUME knob left and right to easily adjust the microphone volume. ◆Features headphone monitoring output and monitoring volume adjustment. ◆Features [AFS] automatic search for clean, interference-free frequencies in the actual environment. Briefly press SCAN to automatically search and lock onto interference-free channels in the actual working environment. ◆Features frequency locking function; long press the SCAN button to turn the frequency locking function on or off. ◆Features manual frequency adjustment; in the idle state, briefly press the VOLUME knob, and rotate it left and right to adjust to the appropriate frequency point. ◆Features [IR] infrared automatic frequency matching function; simply press the SET button, when the display flashes IR, align the transmitter and receiver's IR lights, and the transmitter will automatically lock onto the receiver's working frequency point. ◆Stable DSP chip frequency locking circuit, combined with "digital pilot tone" mute control function and "noise detection" mute control function, can effectively block noisy RF interference from computer equipment, karaoke machines, and DVDs in the working environment. ◆The handheld microphone has a novel appearance design, using a new OLED LCD display that shows the working frequency. The body is made of durable all-alloy material, effectively protecting the internal circuit board components and battery holder, and has an ergonomic feel. ◆Precise low-power circuit design, using 2 AA alkaline batteries, the battery life is up to twice as long as ordinary microphones. ◆Can be paired with wireless handheld microphones and wireless beltpack transmitters. Technical indicators: System parameters RF Carrier frequency range: 630MHz~690MHz Frequency stability: ±0.005% Effective working distance (ideal environment): 200m (meters) Audio compression: AVA classic audio compression circuit Audio frequency response: 50Hz~18KHz/±3dB Dynamic range: >105dB Signal-to-noise ratio (A-weighted): >105dB Total harmonic distortion: <0.6%@1KHz Operating temperature range: -10°C~+50°C Net weight 2.9KG, gross weight 4.75KG Receiver chassis specifications: EIA standard 1U rack Receiving bandwidth: 630MHz~690MHz Receiving method: FM superheterodyne true diversity reception RF sensitivity: When the offset is 25KHz, the input is 5dBv, and S/N≥60dB Noise reduction adjustment: 10dB~30dB, adjustable in 5dB steps Frequency synchronization method: IR Sync Maximum output level: Maximum output +9dBV Output level adjustment range: -3dB~+18dB, adjustable in 3dB steps Audio output jacks: 2 XLR cannon balanced jacks and φ6.3mm unbalanced jack Power supply: DC12V/1A Normal operating current: DV12V, 330mA Dimensions: 225mm (width) x 45mm (height) x 180mm (depth) Net weight: Approx. 2.1Kg Wireless handheld microphone Appearance design is novel, the body is made of durable all-alloy material, effectively protecting internal circuit components, and has an ergonomic feel. Carrier bandwidth: 630MHz~690MHz Oscillation method: PLL phase-locked frequency synthesis Transmission power: 5mW/25mW Carrier error: 0.5KHz Harmonic radiation: More than 45dB below the main wave Modulation method: FM modulation Nominal/maximum frequency deviation: ±45KHz Maximum input sound pressure: Maximum input -11dBv Frequency setting: IR Sync Power supply: 2 AA 1.5V batteries Battery life: >8 hours Dimensions: 40.1mm (φ) x 273mm (length) Net weight (excluding battery): Approx. 425g (excluding battery)