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True Diversity Dual-Channel and Hold Microphone TK-612UH (Handheld)

Digital pilot, 2048-bit symmetric encryption algorithm to prevent eavesdropping;

This professional digital wireless microphone system is designed for stable audio transmission in commercial and professional sound applications. It integrates advanced digital signal processing technology, secure transmission algorithms, intelligent frequency management, and reliable audio output interfaces to deliver clear and consistent wireless performance.

The system includes one receiver host and two handheld microphones, making it suitable for stage performances, conferences, public speaking, karaoke applications, and other professional audio environments.

Product Features

Secure Digital Wireless Transmission

The system adopts digital pilot technology combined with a 2048-bit symmetric encryption algorithm, effectively reducing the risk of signal interception and unauthorized listening during wireless transmission.

Advanced Frequency Management System

Equipped with PLL (Phase-Locked Loop) frequency synthesis technology, the system provides stable frequency operation and supports dynamic audio compression with automatic level control to maintain consistent sound quality.

Intelligent Signal Monitoring and Frequency Control

The receiver supports real-time monitoring of transmitter power status and signal conditions. The one-touch automatic frequency scanning function quickly identifies available channels, while intelligent digital field strength detection helps maintain reliable frequency performance during operation.

Intelligent Power Management

The built-in battery monitoring system provides an intelligent low-voltage warning display, allowing users to check power status in advance and avoid unexpected interruptions.

Professional Audio Output Interfaces

The receiver features independent XLR balanced outputs and 6.3mm unbalanced mixed outputs, providing flexible connection options for different professional audio equipment setups.

Enhanced Noise Reduction Technology

The system integrates Noise Lock and Noise Control functions with Audio Code Navigation technology, improving resistance against interference and maintaining cleaner audio transmission.

Receiver Security Function

The host receiver is equipped with a built-in lock key function to prevent accidental operation changes during use.

System Configuration

  • 1 × Wireless receiver host

  • 2 × Handheld wireless microphones


Receiver Host Specifications

Parameter Specification
Main Operating Voltage DC 12V
Working Current 1000mA
Power Consumption 12W
RF Carrier Frequency Range 632.00–698.70MHz
Frequency Response 80Hz–15kHz (±3dB)
Dynamic Range >110dB
Total Harmonic Distortion (THD) <0.5%
Signal-to-Noise Ratio S/N >100dB(A)
RF Sensitivity -100dBm at 30dB S/N ratio
Mirror Suppression >75dB
Power Supply Requirement 12V/1A
Diversity Reception Sensitivity -105dBm
THD Distortion <0.01%
Audio Output Voltage 0.3V
Adjacent Frequency Interference Suppression >60dB

Handheld Transmitter Specifications

Parameter Specification
Microphone Type Dynamic microphone
Pickup Pattern Cardioid directional pattern
Sound Pickup Sensitivity >-20dBm (1V)
Transmission Power +20dBm (10mW)
Audio Frequency Response 50Hz–18kHz
Frequency Stability ±0.001%
Mobile Phone Electromagnetic Wave Protection Supported
Gain 10dB
Input Impedance 5KΩ
RF Output Power 110mW
Sub-Bass Suppression >50dB
Power Supply 2 × AA 1.5V batteries

Applications

This digital wireless microphone system is suitable for a wide range of professional audio scenarios, including:

  • Conference rooms and meeting facilities

  • Stage performances and live events

  • Public speaking and presentations

  • Entertainment venues

  • Professional audio system integration

With secure digital transmission, intelligent frequency management, strong interference resistance, and flexible output compatibility, this wireless microphone solution provides stable performance for professional users requiring reliable wireless audio communication.

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