A professional wireless conference solution engineered for clear speech pickup, stable infrared frequency alignment, and reliable multi-unit operation in meeting rooms, auditoriums, and institutional venues.

• 1Four-channel signal reception, with 100 selectable channels per channel in 0.25 MHz steps; each channel operates at 24.75 MHz.
• 2Infrared automatic frequency alignment technology with phase-locked loop frequency synthesis oscillation.
• 3UHF band signal transmission with a frequency range of 500 MHz–900 MHz.
• 4Supports simultaneous use of up to 20 sets in the same venue — that is, 20 receivers and 80 transmitters operating at once.
• 5Each channel features an independent window with LCD display showing working channel, frequency point, received signal, and audio signal. Each channel includes an independent volume knob, infrared alignment indicator, one-key alignment button, frequency forward/backward buttons, and channel power switch.
• 6Four rubber receiving antennas at the rear of the receiver enhance signal reception and provide a refined appearance.
• 7Four independent SQ potentiometers, four balanced outputs, and one mixed unbalanced output at the rear, suitable for connecting a wide range of external devices.
• 8400 interoperable channels deliver a humanized, high-tech design.
• 9High-fidelity unidirectional condenser microphone core with accurate sound reproduction, high clarity, and low noise; pickup distance reaches 30–50 cm.
• 10Microphone power consumption of 80 mA, powered by a built-in 3.7 V / 2100 mAh large-capacity lithium battery for up to 30 hours of continuous use.
• 11External small antenna design for more stable reception and effectively increased receiving distance.
• 12Suitable for a wide variety of meetings and speech occasions.

Guangzhou Jiuding Audio-Visual Technology Co., Ltd. specializes in the R&D, production, and sales of high-quality "MEKEY" brand audio-visual equipment. Our 6,000 sqm plant is equipped with advanced production lines, online detection systems, and core technologies including crossover boards, speaker units, and audio systems. Facilities include dedicated R&D, quality inspection, and an exhibition hall.

We provide a full product range and comprehensive solution services — including scheme and drawing design, bidding support, and more. Our offerings cover professional speakers, audio-visual devices, power amplifiers, conference microphones, paperless meeting solutions, recording and broadcasting systems, video conferencing, central control, and video matrix systems. Ideal for both outdoor and indoor events, our products are trusted in over 200,000 successful cases across military, government, public institutions, and large enterprises, earning a stellar reputation.