Instead of a holoscan, the comlink generated an audio signal—an accelerating series of beeps.
通讯器并没有生成任何全息图像，而是放出了一阵音频信号——一连串急促的“哔哔”声。
英语百科
Comlink
In science fiction, a comlink (or com link) is a small, hand-held personal communications transceiver. It consists of a receiver, a transmitter, and a small power source. Comlinks vary in size and configuration. Their appearances vary from hand-held cylinders, to flat, wrist-mounted units, to units incorporated into armored helmets. Sometimes, comlinks have ports for transmitting data gathered by other devices.