Sennheiser SKM9400 Professional Wireless Mic 4-Channel Long Gooseneck Mics for Conference Room & Meeting

Sennheiser SKM9400 UHF Wireless Microphone System | Professional Conference/Performance Grade Handheld Microphone KitProduct Overview: The Sennheiser SKM9400 is a professional-grade 4-channel UHF wireless microphone system designed for demanding audio environments such as high-end conferences, lectures, performances, and multi-purpose halls. Utilizing advanced frequency management and digital audio processing technology, the system provides stable and clear wireless audio transmission and supports flexible multi-microphone configurations, making it an ideal choice for wireless audio solutions in professional venues.Key Selling Points1. 4-Channel Independent System, Flexible Expansion- Each channel has 50 selectable frequencies, for a total of 200 channels in the system.- Supports stacking more than 5 main units, easily handling large multi-microphone scenarios.- 4 microphones are interchangeable; the system is compatible with handheld, lavalier, and headset microphones.2. Intelligent Frequency Management, Stable and Anti-Interference- Infrared automatic frequency pairing (IR) + automatic frequency selection (AFS) technology, one-click quick setup.- Digital audio code locking technology effectively isolates environmental noise and eliminates crosstalk.- Frequency range 530-590MHz, channel spacing 300KHz, stability ±0.005%.3. Professional Sound Quality, Broadcast-Grade Performance- Audio response 40Hz-18KHz (±2dB), covering the full frequency range of vocals and instruments.- Dynamic range 100dB, signal-to-noise ratio >105dB, distortion ≤0.5%.- Clear and detailed sound quality, meeting professional recording and sound reinforcement needs.4. Robust Design, Durable and Long-Lasting- Handheld microphone tube features a metal exterior, resistant to wear and impact.- 30mW transmit power, balancing signal coverage and battery life.- Detachable antenna (TNC interface) for the receiver, facilitating installation and maintenance.5. Intuitive Operation, Visually Displayed Status- LCD screen displays real-time operating status such as frequency, battery level, and signal strength.- Transmitter operates for over 8 hours on two AA batteries.- Receiver uses 12V DC power, widely compatible with various devices.Detailed Specifications| Frequency Range | 530-590MHz || Modulation Method | FM || Number of Channels | 200 || Channel Spacing | 300kHz || Frequency Stability | ±0.005% || Dynamic Range | 100dB || Audio Frequency Response | 40Hz-18kHz (±2dB) | Signal-to-Noise Ratio | >105dB |Total Harmonic Distortion | ≤0.5% |Receiver Specifications- Antenna Type: Detachable (TNC/50Ω)- Sensitivity: 12dBµV (80dB SNR)- Spurious Suppression: ≥75dB- Maximum Output Level: +10dBV- Power Supply: DC 12V 600mATransmitter Specifications- Output Power: 30mW- Spurious Suppression: -60dB- Power Supply: 2 x AA 1.5V Alkaline Batteries- Battery Life: >8 hours (normal transmit power)