Speakerphone mở rộng cho thiết bị AVER VC520 Pro – Full duplex microphone array with echo cancellation – Advanced noise suppression – Dual-microphone array – 3.5 mm phone-in jack – 3.5 mm line out – Speaker volume: Adjustable to 90dB SPL at 0.5 m – Microphone frequency response: 120Hz–16kHz – Microphone sensitivity: -34± 2 dBV @1KHz, 94dBSPL – Microphone distortion: < 1% from 150Hz – Microphone support range: Diameter […]