Video Conference | AV Accessories | WM702HH
WM702HH - UHF Wireless Handheld Microphone System (2-Channel True Diversity)
Wireless Microphone System
WM702HH
UHF true diversity wireless conference microphone system pairing a 2-channel receiver with handheld dynamic-capsule transmitters — 200 selectable channels, AFS auto frequency scan and up to 300m visual-line working distance.
Product Description
The WM702HH is a UHF true diversity wireless 2-channel conference microphone system. The receiver uses a new anti-electromagnetic interference circuit design to eliminate interference from mobile phones and other electronics, paired with an HD COG display showing AF/RF signal strength, frequency, volume, channel and transmitter battery level.
The handheld transmitter features a high-brightness LCD display showing frequency, battery level and operating status. Its dynamic-coil microphone core is engineered around acoustic space principles for high-fidelity conference sound, with an operating range of up to 100 metres under best conditions.
AFS auto frequency scan calculates clean frequency points across the preset range and selects the optimal channel automatically. Infrared SYNC one-click pairing, feedback howling suppression and true diversity 4-antenna reception combine to deliver stable, reliable sound with minimal dead zones.
Key Features
True Diversity Reception
Four independent antennas give more stable transmission, fewer blind spots and longer reception distance.
AFS Auto Frequency Scan
Scans the preset range, calculates clean frequency points and selects the optimal channel automatically.
Infrared SYNC Pairing
Two independent infrared buttons pair transmitter and receiver with one click.
Feedback Howling Suppression
Built-in feedback suppression reduces squeal in live conference and presentation environments.
High-Fidelity Dynamic Capsule
Dynamic-coil core designed around acoustic space principles for clear conference speech.
Anti-Electromagnetic Interference
New anti-EMI circuit keeps audio clean in crowded RF environments.
HD COG Display & Controls
Light ring, shuttle knob and COG display show AF/RF level, frequency, volume, channel and battery.
1U Rack-Mountable
Standard 1U metal chassis integrates into any equipment rack.
Extended Battery Life
At least 8 hours of continuous speaking and 12 hours of standby per charge.
Ideal For
Conference Rooms
Handheld wireless mics for chairman and delegate positions
Lecture Halls
Reliable long-range pickup for instructors moving around
Large Venues
Antenna distribution for full-coverage wireless audio
Auditoriums
Multi-speaker handheld audio for panels and Q&A
Technical Specifications
| Receiver | |
|---|---|
| Power Supply | DC 12V, < 7.2W |
| Dimensions (L×W×H) | 483 × 175 × 45.3 mm |
| Weight | 2.75 kg |
| Carrier Frequency Band | UHF 512–562MHz (customizable) |
| Bandwidth | 50MHz |
| Audio Channels | 4CH |
| Modulation / Oscillation | FM / PLL |
| Sensitivity | S/N > 60dB @ 25KHz, 6dBv |
| Max Deviation | ±45KHz |
| S/N Ratio | > 105dB |
| T.H.D. | < 0.7% @ 1KHz |
| Frequency Response | 20Hz – 20KHz ±3dB |
| Working Distance | 300m (visual distance) |
| Audio Output | Unbalanced 6.35mm × 1, Balanced XLR × 2 |
| Antenna Interface | BNC × 4 |
| Handheld Transmitter | |
| Working Voltage | DC 3.7V – 4.5V |
| Consumption | Standby ≤ 350mW, Speaking ≤ 620mW |
| Display | LCD |
| Operating Time | 8 – 10 hours |
| Operating Temperature | -9°C – 40°C |
| Dimensions | Length 282mm, Max Ø 52mm |
| Weight | 0.35 kg |
| Capsule Type | Dynamic |
| RF Power | 15mW |
| Harmonic Radiation | < -65dBm |
| Operation Distance | Up to 100m (best), 60m (normal) |
