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2.4G Wireless Transmission: with a stable connection from the USB wireless receiver to the PC, the maximum distance between the receiver and microphone/speakerphones can be reached up to 12 meters.
Omni-directional Microphone: Full duplex Omnidirectional Mic, with 6 meters pickup range covering 80 sqm room.
Battery: 2,500 mAh battery, 8 hours talk time
Compatibility: Plug & play, compatible with Windows, macOS, Android, Linux.
HiFi Mode: Immersive sound for both calls and music
Interfaces and ports: Volume +, Volume -, Mute Microphone, Mute Speaker, HiFi, 3.5mm Audio Out, Mini-B USB power supply, Power switch
Wireless Daisychain Dual Speakerphone
2x Daisychained Wireless Speakerphones with USB receiver (Max. 12 meters wall-through wireless). With 6 meters 360° sound pickup distance, it can cover up to 80 square meters meeting room.
360° Omnidirectional pickup
The omnidirectional microphone provides 360° coverage and picks up sounds from any angle.
Ensure everyone clearly hear and is heard.
Immersive sound for calls and music
Experience the omni-directional microphone and HD Voice. Ideal for voice, music and multimedia by the HiFi mode.
Datasheet
| Product name | 2.4G Wireless Conference Speakerphone |
| Model | iSpeaker M404 |
| Interfaces | Power Switch/ HIFI Mode/ Interface Switch |
| Volume + – | |
| 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 | The sampling frequency of speaker: 24Khz ~ 48Khz |
| The 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 | |
| Pickup: 6 meters 360 degree | |
| Coverage | Up to 80 square meters room |
| Echo offset | The maximum 256ms |
| Reverberation time | < 0.5S |
| Product noise | < 48dBA |
| Audio processing | AEC/AGC/NR/NLP/ALC |
| Humidity | -20.9 |
| 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) |
