MS-SP-WI Interactive Conference Audio Speakerphone Previous Next Key Features 2.4G Wireless / USB1 channel built-in omni-directional microphone array1 channel echo suppression reference signal linear inputFull-band full-duplex adaptive echo cancellation technologyBattery power, USB chargingTouch panel control for switch, microphone mute, speaker volume up/downBuilt-in loudspeaker Specifications SNR: 65dBFrequency Response: 20Hz~16kHzSampling Frequency: 32kHzTransmission Mode: 2.4g wireless (preferred) /USB cableAudio Output Interface: 3.5mm headphone jackMonitor Interface: 3.5mm headphone jackCharge Jack: Mini USBFirmware Upgrade Interface: Mini USBAC Adaptor: DC5V±0.2V 1ABattery: Charging time: about 4 hours, using time: about 12 hoursSize: 122×39mm Net Weight ≤500g Downloads Download Images MS-SP-WI Datasheet