Functional Features Using digital analog to achieve sound signal transmission, high fidelity, high signal-to-noise ratio, and no sound delay. Using a unique new anti whistling single directional high-sensitivity capacitive microphone core, the conference sound is almost perfect The main control machine adopts a fully metal structure design, which is dignified and elegant; The attending unit adopts aluminum alloy dual process treatment for engineering panels The material combined with innovative exterior design, built-in antenna, looks beautiful and appropria A data communication algorithm independently developed for conference applications, which ensures that the system response speed is not affected by the number of attending units within the signal range. Users can flexibly add or remove attending units. The default system attendance unit capacity at the factory is ≤ 238 (including 1 chairman). 　　　　　

■ It has the functions of rotating 1-2-3-4, restricting 1-2-3-4, and having multiple conference speaking modes exclusive to the chairman. 　　　　　　　　　　　　　　　　　　

Ultra low power consumption, with more than 8 hours of continuous speech time and more than 10 hours of standby time for the attending unit; Both regular battery No. 5 and manufacturer's original nickel hydrogen battery can be used. The accompanying intelligent charger effectively protects the battery and extends its lifespan Life and ensuring safety. Large screen LCD display. The hierarchical menu design makes the operation simple and convenient. And there are many functions such as battery display and undervoltage warning, frequency channel and signal indication, etc Both the audio channel and control channel are transmitted wirelessly, without the need to lay cables. The signal coverage area can be moved freely, making the venue layout convenient and flexible. The four channels are divided into each group with independent reception, which greatly improves the range and makes it more stable. The control channels also transmit signals separately. The host antenna is equipped with four original technology groups and one control channel, Technical specifications of the main control machine Set each battery display More clearly display whether a signal has been received, with panel settings of 1.2.3.4 and numbers Word signal light, USB interface on the host, Bluetooth function, microphone on the host, music playback function, recording function,

■ Power input: DC12V-15V, ≥ 1A 

■ Power consumption:<7W Working temperature: -10 ℃ -40 ℃ Main controller size (W × H × D): 480mm × 60mm (/1.5U, including chassis foot pad × 200mm) Main control machine weight: 2.4 kg Audio channel: 

■ Communication method: UHF wireless mode (bidirectional) 

■ Frequency range: (610MHz -670MHz) available for selection 

■ demodulation method: Digitaltransfer Receiving sensitivity: --100dBm Control channel:

■ Communication method: UHF wireless bidirectional 

■ Frequency range: 410MHz-470MHz Modulation method: FSK Receiving sensitivity: -100dBm Radiation power: ≤+6dBm Frequency deviation:<0.002 Wireless conference system microphone *The microphone panel is made of aluminum alloy with dual process treatment, brushed with matte sandblasted black, beautiful and elegant, durable; *The microphone uses 3 1.5V dry batteries, which can be easily replaced at any time. The microphone automatically shuts down when the host is turned off; *The microphone is designed with high-strength anti mobile electromagnetic wave interference, which can eliminate mobile phone interference noise and suppress adjacent frequency interference; *The chairman's microphone has a priority function, which can turn off all active representative microphones with one click; *The microphone switch uses automotive grade rubber switch buttons, which are durable and have a slight mechanical sound characteristic; *Equipped with professional high fidelity, single high directional capacitive microphone core, pluggable microphone pole (optional short pole speaker), the sound is loud and clear, and adding high-speed feedback suppressor can increase the pickup distance to 50M-80CM. *The microphone has a 1.77-inch IPS color display screen, with a unique wide viewing angle and bright colors. It displays the microphone status in real-time, including remaining battery level, ID number, usage channel, and speech time calculation; Microphone parameters Battery: 3 X 1.5V Battery: 3 1.5V No.5 batteries (optional rechargeable battery) Adjacent frequency interference suppression:>60dB Core directionality: Heart shaped pointing towards Cardioid Sensitivity: -47Db Transmission power:>+10dBM (10MW) Power consumption current drain: 220mAh UHF frequency range: UHF600MHz-690MHz, 433MHz Frequency response: 100-10 KHZ Signal to Noise Ratio (S/N): 65Db Size: 105 × 45 × 62mm without microphone rod Weight: 0.9 KG Audio Channel: 

■ Communication method: UHF wireless mode (dual directional) 

■ Frequency range: (410MHz -470MHz) available for selection 

■ demodulation method: Digitaltransfer Receiving sensitivity: --100dBm Control channel: 

■ Communication method: UHF wireless bidirectional 

■ Frequency range: 410MHz-470MHz