Conference System Base Station Product Descriptions: (1) Suitable for small and medium-sized conferences and large international conferences (2) high definition, high fidelity (3) Speaker number limit function (4) FIFO function (5) Howling suppression function (6) Priority function. (7) Built-in super pointing electret microphone core. (8) Can carry DV-9900CM or DV-9900DE: 100 (9) Can carry DV-9900CS or DV-9900DS: 60 (10) Light touch switch (11) Red working light ring on the microphone (12) Chassis size: 48.2 x 35 x 9 cm (13) Packing size: 54 x 47.5 x 17.5 cm