infobit iSpeaker M404 2.4G Wireless Conference Speakerphone User Manual

infobit iSpeaker M404 2.4G Wireless Conference Speakerphone User Manual

Product Overview

1. Microphone
   With 2pcs 360 degree omnidirectional digital silicon microphones.

2. Speaker

3. Volume+

4. Volume－

5. Indicator
   Wireless Connection Mode:
   Normal state: blue indicator is on.
   Mute microphone: blue indicator and red indicator are flashing alternately.
   Speaker mute: red indicator flashes
   HIFI mode: Violet indicator is on

6. Mute Microphone
   Press this key to turn off (mute) the speaker temporarily. In order to cancel this mute function, please press it again.

7. HIFI mode : To short press the key, the speaker sampling rate is converted to 48KHz, effectively improves the quality of music.
   ( Note: In HIFI mode, the microphone will be mute automatically.)

8. Mute Speaker
   Press this key to turn off (mute) the speaker temporarily. In order to cancel this mute function, please press it again.

Interface

1. Power button
   Press 0.5 seconds to power on and 2 seconds to power off

2. Audio Output
   With it, the user can connect the stereo to increase audio of the speaker, or connect the earphone to guarantee the privacy.

3. USB Port
   Power supply and battery charging, 5V.

Packing list

Installation Process

1. Install any UC software in your computer. (Zoom, Microsoft Teams, Skype, and any other conference software.)
2. Insert the 2.4G receiver into the USB interface of the computer. And fully charge the built-in battery of the device, or directly connect the USB connection wire with the computer.
3. After normal connection with 2.4G wireless connection, the blue will be on.

Precautions on Adjusting Volume by End of Computer

The omnidirectional microphone can match various PCs or mac, however, since that the default volumes of various systems are different, we propose to adjust the volume of the omnidirectional microphone in the computer to the medium and upper volume.

In order to achieve the optimum communication quality. If the speaker volume of the omnidirectional microphone in the computer is adjusted too high, it may cause exceeding product specification (the optimum volume of all the load of the product), in order to cause the sound of the speaker distorted.

Taking Windows 7/Vista for Example

1. Click the sound of start〉control panel〉. And then pop up the “play” attribute options;

2. In the option bars of default equipments of “play”, choose “USB 2.4G Audio”. (See following figure)

3. Double click ” USB 2.4G Audio” in the options of “speaker”, and choose “Level” from the pop-up dialog box, and drag the “speaker” volume bar in the option to 100%; (As shown in the following figure)

4. In the option bars of default equipments of “recording”, choose “USB 2.4G Audio” (As shown in the following figure)

5. Double click ” USB 2.4G Audio ” in the option of “record”, and choose “Level” in the pop-up dialog box, and drag the volume bar of “microphone” in the option to 100%; (As shown in the following figure)

Datasheet

Microphone mute
Speaker mute
LED indicator| Blue on: standby or communication mode
Blue and red are flashing alternately: microphone mute
Red flashing: speaker mute
Blue flashing: No 2.4G receiver is detected
Sound| Sampling frequency of speaker: 24Khz ~ 48Khz
Sampling frequency of microphone: 16Khz
Hardware| Double omnidirectional digital silicon microphones
4Ω6W speaker
3 meters of USB power supply cable (DC 5V/500mA)
3.5 audio output
Power switch
Power| Operating voltage: 4.5V ~ 5.5V
Built-in lithium battery 3 .7V-2,500mAh
Microphone| Digital silicon mic, omnidirectional
| Sensitivity:-26 +/- 1 dB
---|---
Frequency: 100 ~ 10,000 Hz
SNR: ≥61.2dB
The maximum sound pressure level: 115dB
The maximum current consumption: ≤0.5mA
Echo offset| The maximum 256ms
Reverberation time| < 0.5S
Product noise| < 48dBA
Audio processing| AEC/AGC/NR/NLP/ALC
Humidity| -20-90%
Temperature| -40-70℃, 0-95% RH
Size| 157 x 157 x 45mm (microphone unit)
Packaging size| 435 x 210 x 90mm
Gross Weight| 1,4kg (after packaging)

INFOBIT AV
info@infobitav.com
www.infobitav.com

References

• infobit AV- 4K Matrix Switchers, Wireless Presentation, Active Optical Cable and Conference Camera- Meeting Room Solutions

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