Bright LED indicators show relay status and signal strength.

明亮的LED指示灯显示继电器状态和信号强度。

youdao

There are two LED indicators that designate signal and power.

该转换器上有两个LED指示器指定信号和电源。

youdao

There are two LED indicators on the front panel : Power and Battery Charge.

有两个LED指示灯前面板：电源和电池充电。

youdao

You attach it around your water bottle and it monitors your fluid intake, reminding you, with sounds and LED indicators, that, perhaps, its time to drink more water.

CNN: Apparently This Matters: Drink water, you dummy

Up front there are minimal LED indicators including one for power, another for network connectivity and finally Sling's upside-down "U" that lets you know when someone is using it.

ENGADGET: Slingbox 350 and 500 review: Sling Media finally upgrades its line of media streamers

The topmost section features a physical volume dial that also serves as a mute switch when pushed, surrounded by a circular cluster of LEDs (for clockwise-flowing level indication) and then a secondary outer ring of capacitive buttons and LED indicators.

ENGADGET: Turtle Beach XP Seven Series headset review: a new era of tournament-grade gaming audio