D7821PS True Diversity UHF Wireless Microphone System ( Receiver×1+Handheld Mic...

Features

● Professional stage, UHF PLL design, excellent sound quality, multiple channels available.
● Utilizes digital pilot lock technology, with each channel assigned a unique D-code. It greatly improves the anti-interference ability and allows it to be used on multiple devices at the same time.
● The four-antenna circuit design effectively overcomes disconnection and frequency issues. The effective range in open environments reaches up to 150 meters.
● Infrared automatic frequency matching technology enables one-click searching for interference-free channels, making operation simple and straightforward.
● Due to the diversified design of this product, the transmitter's power consumption is particularly low and energy-efficient, significantly reducing operating costs. Two AA alkaline batteries can provide approximately 7 hours of continuous operation.
● The receiver of this product can accurately display the transmitter's battery level, offering great convenience to users.

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Introduction
Specification

The D7821PS, D7822PS, D7823PS, and D7824PS True Diversity UHF Wireless Microphone Systems are engineered to deliver consistent and reliable wireless performance, with transmission distances reaching up to 150 meters within the 610–690MHz frequency range.

Incorporating True Diversity reception technology, the system enhances signal stability and minimizes dropouts, while maintaining a high signal-to-noise ratio of ≥105dB for clean audio output. It also supports extended operation with a battery life of up to 7 hours.

Designed for demanding audio environments, this series is well-suited for conferences, stage performances, and event applications, providing clear and dependable sound across a variety of scenarios.

Model	D7821PS	D7822PS		D7823PS		D7824PS
Receiver
Channel Configuration	Diversity dual-channel
Operating Frequency Range	UHF 430MHz
Frequency Stability	±0.005%, PLL Frequency Control
Effective Transmission Distance	150 meters (Open Environment)
Sensitivity	-98dBm
Audio Performance	Maximum Deviation: ±75KHz Frequency Response: 45Hz-16kHz (±3dB) Signal-to-Noise Ratio (S/N): ≥105dB (1KHz-A weighted) Total Harmonic Distortion (T.H.D.): ≤0.5%
Output Interface	XLR balanced output, Ø6.3mm unbalanced output (maximum output +10dB)
Power Supply	DC12V/1A
Transmitter
Operating Frequency Range	430MHz
Modulation Mode	Wideband FM
Channel Features	Supports 200 Channels, 300KHz Channel Spacing
Pickup Type	Dynamic, Cardioid		Condenser		Condenser		Condenser
Transmission Power	<10mW
Antenna Type	Built-in Antenna
Audio Performance	Frequency Response: 45Hz-16kHz (±3dB) Spurious Suppression: -50dB
Power Supply	2 AA Alkaline Batteries (Supports approximately 7 hours of operation)
Effective Transmission Distance	150 meters (Ideal conditions)
Operating Temperature Range	-10℃ to +50℃