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GT-259A

Wireless microphone

GT-259A
GT-259A
GT-259A
GT-259A

Automatic human hand sensing patent technology: The microphone automatically mutes within 3 seconds after leaving the hand and remaining stationary (can be placed in any direction or angle), and enters power-saving mode after 5 minutes.

  • Adopting a unique zinc alloy electroplating process, it boasts high durability, excellent abrasion resistance, and strong corrosion prevention. Suitable for upscale KTV rooms, small to medium-sized performances, classrooms, conference rooms, and more.


Main Features

  • Frequency Range: 640-690MHz
  • Number of Channels: 100×2
  • Frequency Stability: ±10ppm
  • Reception: -95~-67dBm
  • Audio Frequency Response: 40-18000Hz
  • Harmonic Distortion: ≤0.5%
  • Signal-to-Noise Ratio: ≥110dB
  • Power Consumption: ≤10W
  • Dimensions: 420mm*42mm*172mm
  • Weight: 3kg

Product Description

  • The patented technology automatically activates after 5 minutes, entering human touch sensing mode. It triggers within 3 seconds in any direction or position, with a 5-minute energy-saving feature before automatically cutting off power intermittently. A brand-new concept—an automated wireless microphone.
  • A brand-new audio circuit architecture and sound source deliver clear vocal expression, especially in high-frequency playback.
  • Innovative digital pilot tone technology completely eliminates frequency interference in KTV rooms—no more crosstalk!
  • Equipped with a simple sound effect circuit for easier tuning.
  • Automatic interference-free channel search function for easier installation.
  • Adjustable maximum output level for broader adaptability.
  • The host device allows flexible usage limit settings.
  • UHF, Phase-Locked Loop (PLL) frequency synthesis.
  • 100×2 channels, 250KHz spacing.
  • Dual-conversion superheterodyne design for exceptional selectivity.
  • Multi-stage RF processing for outstanding anti-interference performance.
  • The first intermediate frequency uses a SAW filter, while the second employs a triple-stage ceramic filter, significantly enhancing anti-interference capability.
  • Specially designed mute circuit eliminates popping noise during power on/off.
  • The microphone uses standard AA batteries, providing 6–10 hours of continuous use.
  • Unique boost circuit design for the capacitor ensures consistent performance without affecting handling.
  • An operational range of up to 80 meters, suitable for various venue requirements.
  • Pre-configured with smartphone default settings.
  • Multiple speaker range and static threshold settings for effective control—adjustable within an 8-meter range, extendable up to 10 meters.
  • Infrared auto-pairing function ensures fast synchronization for active operation.
  • Designed for KTV systems, enabling quick setup for multiple rooms. Easily supports over 100 private rooms with a unique structure and simple maintenance.
Frequency Range: 640-690MHz
Number of Channels: 100x2
Tuning Method: Phase-Locked Loop (PLL) Frequency Synthesis
Frequency Stability: ±10ppm
Reception: -95~-67dBm
Audio Frequency Response: 40-18kHz
Harmonic Distortion: ≤0.05%
Signal-to-Noise Ratio: ≥110dB
Audio Output: Balanced Output and Mixed Output
Transmission Power: 3-30mW
Battery Specification: 2 AA Batteries
Modulation Method: Frequency Modulation (FM)
Power Supply Specification: 100-240V 50-60Hz or 220VAC 12VDC (Linear Power Supply)
Dimensions: 420mm*42mm*172mm
Weight: 3Kg

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