Note that when the currently active audio output device does not support volume control (such as an A2DP device), the volume slider is replaced by the appropriate device name.

注意如果当前的声音输出设备不支持音量控制(就像设备A2DP)，音量滑块就不会显示，取而代之的是设备名称。

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The article analyzes specifically dust control for effectiveness reasonableness and introduces calculating methods of blow and exhaust wind volume of Push pull ventilation device.

对其烟尘控制的有效性和合理性作了具体分析，同时介绍了吹吸式通风装置送、排风量的计算方法。

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The current audio device does not provide an adjustable volume control.

当前音频设备未提供可调整的音量控制功能。

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With Bluetooth capability, you can use a discreet remote control to change volume, turn the device on and off, toggle between electronic devices, answer hands-free phone calls and stream music, sort of like having a miniature wireless headset in your ear.

WSJ: Conquering Retirement: Hearing-Aid Shopping Tips

With HTC Connect, consumers can turn their phones into never-ending sources of entertainment, with the ability to control music playback and volume easily while simultaneously using the device for other functions, from making and receiving calls and taking pictures to downloading the latest apps and surfing the Web.

ENGADGET: Firmware updates for Pioneer AV receivers add HTC Connect music streaming compatibility

The Roku Streaming Stick, when purchased separately and not bundled with a device, comes with a Roku enhanced remote which features volume buttons and motion control for game play.

ENGADGET: Roku Streaming Stick launches in October for $99, Vudu comes to the Roku platform today