The ALF-WMP4 is a wireless microphone system with a controller and four 2.4GHz wireless microphones. The controller can be connected to an amplifier or powered speakers. It has a USB connection to connect to conferencing software like Teams and Zoom and a Wireless handheld microphone input.
The system features intelligent digital audio processing with dynamic noise reduction, 384ms acoustic echo cancellation for full-duplex voice calls, 360° Omni-directional audio pickup from the microphones. The pickup radius of a single omnidirectional microphone is 2m.
Product Features
• Supports external active speakers or an amplifier. • Supports conference software such as Teams, Zoom etc. • 4 x 2.4Ghz Wireless omnidirectional microphones • Handheld microphone can be connected to the controller • Dynamic Noise reduction processing • 384ms Echo Cancellation, Full Duplex • 360° omni-directional with 2m pickup
Specifications
TECHNICAL SPECIFICATIONS
Size • Master：267*145*51mm • Single mic：110*110*25mm
Weight • Master：1044g • Single mic：236g
Color • Business black Interface • B type USB interface 6.5mm audio jack • 6.5mm handheld microphone interface • Handheld microphone receiver charging port • Hand-held microphone volume adjustment knob • Antenna interface DC power interface
Wireless omnidirectional microphone • Audio bandwidth is 100-16KHz • Sensitivity: -38 dB • 94dB SPL@1KHz • Signal to noise ratio: 65dB 94dB SPL@1KHz, A-weight
Wireless Frequency Specifications • Frequency Range : 2404MHz ~ 2472MHz • Channel Spacing : 4MHz • RF Channels Used : 15 • Modulation Type : GFSK (Gaussian Frequency-shift Keying) • RF Antenna Power : 2.0dBi (Max) (External Antennas)
Power Supply • Host power adapter: -12V2A • Slave power adapter: -5V/500mA • Supports wireless charging
Audio characteristics • Digital audio processing 384ms echo cancellation technology • Intelligent dynamic noise reduction • Full duplex • 360° pickup range • The effective pickup radius is 2 meters (Single omnidirectional microphone)
Computer system required • Windows 7 / Windows 10 / MacOS
Button on mics • Microphone mute button Speaker mute button Volume up button Volume down button Slave switch button
Master LED light status • Master red light is always on: under normal work • The speaker status indicator on master is on in green: Under normal work • The speaker status indicator light on master is on in red: Speaker mute
Slave mics LED light status • Normal mode: the green light is always on • Mute microphone: red light is always on • Low power: the red light of the speaker flashes • Volume adjustment: the mic green indicator flashes • Not connected normally: the green light flashes
