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  • D4-BPH Digital Wireless Headset Microphone System for Stage
  • D4-BPH Digital Wireless Headset Microphone System for Stage
  • D4-BPH Digital Wireless Headset Microphone System for Stage
  • D4-BPH Digital Wireless Headset Microphone System for Stage
  • D4-BPH Digital Wireless Headset Microphone System for Stage
  • D4-BPH Digital Wireless Headset Microphone System for Stage

D4-BPH Digital Wireless Headset Microphone System for Stage

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UHF Digital Wireless Headset Microphone System for Stage Performance, True Diversity 150 Meters
Features
This wireless headset microphone system adopts advanced, modern high-frequency transmission technology, ensuring not only safety and reliability but also ease of use and comfort. Both the transmitter and receiver support high-quality wireless audio transmission.
Optimized PLL synthesizer and microprocessor technology.
Utilizes advanced noise suppression methods.
Features a secure squelch function to control audio transmission and eliminate unwanted noise.
Employs a true diversity automatic frequency selection reception method, providing extended reception range while eliminating audio dropouts.
Supports channel search functionality for convenient setup.
The transmitter offers a 50MHz RF bandwidth.
Operating range up to 150 meters (492 feet) line of sight.
Suitable for church, speech, public speaking, classroom teaching, stage performance etc.
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  • Detail
    D4-BPH Digital Wireless Headset Microphone User Manual.pdf

    Model: D4-BPH
    True Diversity
    Operating range: 150m, 492ft

    Specifications
    Frequency Range: UHF 600-937 MHz (region dependent)

    Receiver
    Frequency Range: UHF 640–690 MHz
    (606-630 MHz Optional), (USA: 902-928, UK: 863-865, ROK: 925-937 MHz)
    Chassis Standard: EIA Standard 1U
    Channel Groups: Dual channels
    Frequency Stability: ±0.005%, PLL synthesized frequency control
    Factory Preset Frequencies: 200 frequencies
    Effective Operating Range: Approx. 200 meters (in open space)
    Oscillation Mode: PLL synthesized frequency control
    Sensitivity: At 25kHz deviation, input 6dBuV, S/N > 60dB
    Bandwidth: 50MHz
    Maximum Deviation: ±45kHz
    S/N: >105dB
    THD: <0.7% @ 1kHz
    Frequency Response: 45Hz–18kHz (±3dB)
    Power Supply: 100–240VAC, 50/60Hz
    Weight: 2.25kg
    Dimensions: 285mm (L) × 185mm (W) × 45mm (H)
    Output Connectors: Balanced XLR and unbalanced 6.3mm jack

    Bodypack Transmitter
    Frequency Range: UHF 640–690 MHz
    (606-630 MHz Optional), (USA: 902-928, UK: 863-865, ROK: 925-937 MHz)
    Transmission Power: ≤32mW (high/low adjustable)
    Bandwidth: 50MHz
    Display: OLED
    Volume Gain: Adjustable 0~+15dB
    Spurious Emissions: ≥60dBc
    Maximum Deviation: 48kHz
    Distortion: <1% (excluding microphone capsule)
    Power Supply: 2 × AA alkaline or rechargeable batteries
    Battery Life: 6–8 hours (alkaline), current 150mA (3V)
    Dimensions: 175mm × 62mm × 24mm

    Product Description

    The Acemic D4-BPH wireless headset microphone system delivers professional-grade performance for speakers, performers, and presenters who demand reliable, crystal-clear audio. Designed with advanced high-frequency transmission technology, this dual-channel system ensures both safety and stability while providing a comfortable user experience. Operating in the UHF 640–690 MHz frequency band with 200 preset frequencies, it offers exceptional flexibility and freedom from interference in a wide variety of environments.

    Built with an optimized PLL synthesizer and microprocessor technology, the D4-BPH achieves precise frequency stability and superior sound reproduction. Its true diversity reception with automatic frequency selection eliminates dropouts, ensuring uninterrupted signal coverage even in challenging environments. With an operating range of up to 150 meters (492 feet) in open line-of-sight conditions, this system is ideal for large venues such as churches, houses of worship, classrooms, auditoriums, and stages.

    The headset microphone provides clear, hands-free convenience, making it perfect for teaching, public speaking, live performances, or fitness instruction. Enhanced with advanced noise suppression and a secure squelch function, the system minimizes unwanted interference while maintaining smooth, professional audio. The transmitter features a 50MHz RF bandwidth and supports channel search functionality for fast and hassle-free setup.

    Whether for a single presenter or a dynamic stage performance, the Acemic D4-BPH wireless headset microphone system combines durability, range, and audio clarity, making it an excellent choice for anyone seeking a reliable wireless solution.
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