Receiver parameters:
(1) Adopts PLL digital phase-locked loop multi-channel frequency synthesis technology, standard IEEE Drat2.0 802.11n wireless indicators, ensuring transmission security and speed, strict digital protection, ensuring meeting privacy, avoiding eavesdropping and malicious interference; adopts high-performance audio processing chip, ultra-high frequency dynamic compression shunt technology, automatically shunts high and low frequencies, showing better dynamic performance; provides up to 200 channel selections at 250KHz intervals within a 50MHz frequency bandwidth, with lockable control function selection and adjustable wireless gain connection function; frequency stability: ±0.005% or less, dynamic range: 100dB, maximum frequency deviation: ±45KHz, audio response: 80Hz-18KHz, comprehensive signal-to-noise ratio: >105dB, comprehensive distortion: ≤0.5%, wireless interface: BNe/50 ohms, sensitivity: 12DB Bμ (80dBS/N), sensitivity adjustment range: 12-32DB, stray suppression: ≥75dB, maximum output level: ±10DB V, convenient for multiple sets of machines to be used simultaneously, easily avoiding various interferences; ultra-long distance ≥100 meters stable signal, adopts one-button automatic radar search for the best frequency automatic frequency matching, thoroughly simplifies complex engineering installation, a new concept of digital pilot tone technology, completely solves the mutual frequency interference phenomenon of KTV private rooms, never frequency interference; the sound curve has been carefully tuned, the sound is warm and transparent, equipped with a howling suppression function circuit, a new audio circuit structure, audio signal processing adopts international top high-performance audio processing chip, ultra-low distortion sound processing circuit design, has excellent expressiveness in sound details, strong dynamic tracking ability makes it easy to pick up and play sounds at both far and near distances; a large and clear 2-foot LCD screen can view the battery power, frequency signal, signal strength, audio level and other information status of the wireless unit; all silicone guide light keys, the display is simple and neat; single unit 210mm wide, can be independently installed in the cabinet, or can be spliced 2 units to install in the cabinet.
(2) External independent antenna output port, built-in frequency two-way encryption signal technology lock, added frequency stability technology, completely solves the signal dead angle frequency interruption problem within the effective range, reduces breakpoints and delays signal breakpoints, making reception more stable and distance farther. Multiple sets can be used simultaneously without frequency interference.
(3) Two-channel receiver, with one 6.3mm unbalanced audio output port and two XLR balanced audio separate output ports, for better detailed and independent control of each channel's sound adjustment.
(4) Adopts 128-bit AES encryption technology, supports WPA/WPA2 wireless security technology; supports manual/automatic frequency allocation function.
(5) Supports adjustable input and output audio volume; features high-strength anti-mobile phone electromagnetic wave interference design, multi-level error correction and encryption, eliminating interference from mobile phone electromagnetic waves and adjacent channel interference suppression, ultra-strong anti-howling suppression. Added encryption lock function to prevent misoperation by non-professionals;
 

Transmitter parameters:
(1) Adopts PLL digital phase-locked loop multi-channel frequency synthesis technology, the completely digital receiving host and transmitting unit adopt digital transmission technology to ensure the privacy of signal transmission and avoid eavesdropping and malicious interference. The unit microphone can adjust different sound effects according to the speaker's voice characteristics until the perfect effect is achieved; adopts 128-bit AES encryption technology, supports WPA/WPA2 wireless security technology, has a high-strength anti-mobile phone electromagnetic wave interference design, multi-level error correction and encryption, eliminates interference from mobile phone electromagnetic waves and adjacent channel interference suppression, providing higher meeting system confidentiality;
(2) Handheld microphone unit is made of all-metal; dynamic microphone core, equipped with a howling suppression function circuit, a new audio circuit structure, audio signal processing adopts international top high-performance audio processing chip, ultra-low distortion sound processing circuit design, has excellent expressiveness in sound details, strong dynamic tracking ability makes it easy to pick up and play sounds at both far and near distances; ultra-strong anti-howling suppression; KTV projects, large and small performance projects, easy installation and debugging.
(3) Microphone type: Waist-pack microphone core, can pick up sound within a 20CM range, cardioid condenser; handheld adopts dynamic microphone core, frequency response: 80Hz～16KHz; microphone input impedance: 1KΩ; sensitivity: -46 dBV/Pa; maximum SPL: 100dB(THD>3%); signal-to-noise ratio: >80dB(A); crosstalk: >70dB; dynamic range: >80dB; THD: <0.1%; maximum power consumption: 4 W; headphone load: >16Ω; compliant standard: IEC60914; power supply method: Battery power supply, charging port direct power supply; display screen: 2-inch color screen; installation method: Desktop; wireless frequency range: 5GHz, standard configuration of 2 1.5V batteries, battery capacity up to 1200mAh, can last for 10 hours of speech or 12 hours continuously.