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4-Channel Handheld UHF Wireless Microphone Kit

4-Channel Handheld UHF Wireless Microphone Kit

Sound Unleashed, Everywhere You Go
 Four-channel Signal Reception
 Enhanced Stability Technology
 Interchangeable, 400 Frequencies
 UHF Frequency Band Transmission
 Unique ID, Multi-Channel Capability

The UHF Frequency Band Transmission Signal covers 500MHz-900MHz with 4-channel reception, offering 100 selectable frequencies per channel, stepping by 250KHz. Stable PLL digital phase-locked loop technology enhances stability, while unique ID numbers per channel reduce interference. Equipped with 2 antennas for signal reception, the receiver features balanced and unbalanced outputs. Its user-friendly design supports up to 10 units simultaneously. The handheld microphone offers RF power selection, conserving battery and extending usage to 8 hours. With a range of 80-100 meters in open environments and 50-80 meters in complex environments, it ensures reliable transmission.



Parameter Value
Oscillation Method Phase-locked loop frequency synthesis
Frequency Range UHF 500MHz~900MHz
Frequency Stability ±0.001%
Modulation Method FM
Signal-to-Noise Ratio >60dB
Distortion <0.5% @ 1KHz
Sensitivity 1.2/μV @ S/N=12dB
Power Supply DC: 12V~17V
Audio Output Independent 0~400mV, Mixed ~300mV
Power Supply DC 4.5V (1.5V AA3)
Microphone Power Consumption 100mA
Carrier Frequency UHF 500MHz~900MHz
Frequency Stability ±0.001%
Maximum Frequency Deviation ±30KHz
Signal-to-Noise Ratio >60dB
Adjacent Channel Interference Ratio >80dB
Dynamic Range ≥100dB
Type Capacitive
Polar Pattern Single-directional
Frequency Response 40Hz~20KHz
Microphone Sensitivity -43±3dB @ 1KHz
Dimensions (W x D x H) 420 x 220 x 44mm
Weight 7.5kg
Does it support POE power supply system according to IEEE802.3af standard?
Yes, it supports POE power supply.
Is there VDO decode capability of 720p@30fps with H.264 compression?
It only supports to be selected the video resolution to VGA/720p/1080p on its webpage.
Is there a function to reduce Noise Elimination?
 The IP paging mic is built with the Noise reduction algorithm.
Can it work in cases where the server has network problems?
The IP paging mic supports offline calling without server software.
Support recording all incoming and outgoing call information. Including calls that have missed calls?
Yes, it supports
What should I do if other SPON® IP audio devices cannot be identified by the built-in web server of SPON® IP paging console?
  • Please check if the communication protocol of other SPON® IP audio devices has been set to NAS protocol, since the built-in web server can only identify other devices via NAS protocol.

Which Audio Formats are supported by SPON IP public address system? How much bandwidth is used?
  • The audio formats of IP Public Address are: MP2, MP3, AAC, etc. (MP2 and AAC are the standard designated audio formats of national DAB )

  • Compare of used Bandwidth: MP2: 256K-512K MP3: 64K-128K

Practical features of the IP PA system when applied to highways?
  • Background Music and Announcements: The system can play music, Emergency Broadcasting.

  • Situation Reports: It can announce daily activity schedules, provide key points about significant events, and give updates about essential convoys passing through.

  • Emergency Interjections: The system can be used to urgently intercept vehicles violating rules, grant access to special vehicles, and command on-site order during chaotic situations.

  • Emergency Paging: If a toll booth encounters an unexpected situation, operators can use a one-touch emergency call to the control center or neighboring toll stations for immediate assistance.

Where can digital IP public address systems be applied?
  • Schools, especially those equipped with campus networks.

  • Highway Toll Stations

  • Chain Supermarkets

  • Large Enterprise.

  • Office Buildings and Skyscrapers.

  • Rural Connectivity Projects.

  • Any location with network connectivity can benefit from the IP public address system.

How does SPON's IP public address system set itself apart from traditional PA systems?
  • High Audio Quality: The system offers pristine fidelity through its full digitalization, utilizing CD-like quality data file formats, which are perfectly consistent with computer output.

  • Personalization: Built on an Internet protocol, each audio endpoint can freely choose any channel for playback, with adjustable progress, allowing for point-to-point personalized programming.

  • Network Integration: From teachers' courseware production and arrangement to speeches and scheduled program broadcasts, everything can be operated remotely over the network.

  • Remote Functionality: The system supports remote broadcasting across different cities and even countries. As long as there's an internet connection, broadcasting can be initiated.