AD4Q 4-Channel Digital UHF Wireless Microphone System with 4× KSM8 Handheld Mics Kits

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▸ 400-Channel Flexibility: Each of the 4 independent receivers offers 100 selectable channels (250 kHz spacing / 24.75 MHz per channel). Up to 20 systems (80 transmitters) can operate simultaneously on the same stage without interference.

▸ Stable PLL Digital Synthesis: Advanced phase-locked loop digital lock-phase technology paired with chip-based circuitry ensures exceptional frequency stability of ±0.001%, eliminating drift and dropouts in demanding environments.

▸ Flexible Transmitter Pairing: No longer limited to a single channel per transmitter — each handheld can be paired across all 400 channels within two receiver banks, offering unmatched setup versatility.

▸ Wide Frequency Range: Operates across the UHF 610 MHz – 670 MHz band with FM modulation, delivering a signal-to-noise ratio exceeding 60 dB and total harmonic distortion below 0.5% at 1 kHz.

▸ Exceptional Range: Achieves 300–500 meters in open-space conditions and 80–200 meters in complex environments, powered by 4 rubber receiving antennas on the rear panel.

▸ High Dynamic Range: With ≥100 dB dynamic range and >80 dB adjacent-channel rejection ratio, the system maintains clean audio even in RF-congested venues.

▸ High-Fidelity Condenser Capsule: The KSM8 features a unidirectional (cardioid) condenser element with a frequency response of 40 Hz – 20 kHz, capturing every vocal nuance with outstanding clarity and minimal noise.

▸ Sensitivity & Power Efficiency: Rated at -43 ±3 dB @ 1 kHz with a power consumption of only 80 mA, each mic runs continuously for up to 12 hours on 3 × AA (1.5V) batteries.

▸ Patented Design with Status Indicator: The unique patented housing includes a blue light ring that illuminates during operation, making it easy to monitor mic status at a glance.

▸ Comprehensive I/O: Rear panel features 4 independent SQ potentiometers, 4 balanced XLR outputs, and 1 mixed unbalanced output, compatible with mixers, amplifiers, and recording interfaces.

▸ What's Included: 1 × 4-channel digital receiver, 4 × KSM8 handheld microphones, 1 × 1/4-inch audio cable, 1 × universal AC-DC adapter (110V / 240V), 4 × antennas, and 1 × user manual.