我们的大多数便携式设备内部都有蓝牙芯片(Bluetooth chip)。它使我们能够在短距离内以无线方式将它们连接到其他设备，并且无需使用电线。当您想将耳机、便携式扬声器或其他类似设备连接到您的 iPhone 或 iPad 时，尤其如此。这就是为什么我们认为展示如何将蓝牙(Bluetooth)设备连接到iPhone 或 iPad(iPhone or iPad)是个好主意：
注意：(NOTE: )本指南适用于 iOS 11.3.1，它是使用 iPhone SE 创建的。如果您使用的是不同版本的 iOS、iPad 或不同的iPhone 型号(iPhone model)，我们的屏幕截图可能与您在屏幕上看到的略有不同，但所涉及的步骤应该相似。
步骤 1(Step 1)。在iPhone 或 iPad(iPhone or iPad)上启用蓝牙(Bluetooth)
无论您是想将蓝牙耳机(Bluetooth headset)、耳机还是便携式扬声器连接到iPhone 或 iPad(iPhone or iPad)，过程都是相同的。首先(First)，您必须打开智能手机或平板电脑(smartphone or tablet)上的蓝牙(Bluetooth)。一种方法是打开设置应用程序(Settings app)，点击蓝牙(Bluetooth)，然后启用蓝牙开关(Bluetooth switch)。
但是，还有其他方法可以打开它，我们在本教程中介绍了它们：在 iPhone 或 iPad 上打开和关闭蓝牙的 3 种方法。(Bluetooth)
步骤 2(Step 2)。打开要连接的设备
第二步是启动要连接iPhone 或 iPad的(iPhone or iPad)蓝牙设备(Bluetooth device)。通常，这意味着按下其电源(Power)按钮或电源(Power )开关。为了便于理解，我们以蓝牙耳机(Bluetooth headset)和蓝牙音箱(Bluetooth speaker)为例。
我们的蓝牙耳机有一个电源(Power)开关，必须打开它才能运行：
蓝牙(Bluetooth)便携式扬声器有一个电源按钮(power button)，必须按下它才能打开。
步骤 3(Step 3)。让您的设备进入(device enter) 蓝牙配对(Bluetooth pairing)模式
接下来，您必须使要连接的设备进入蓝牙(Bluetooth)配对模式。这可能因设备而异，但通常意味着按下专用的“蓝牙(Bluetooth)配对模式”按钮或按下电源按钮(power button)几秒钟。进入蓝牙(Bluetooth)配对模式的设备也会发出明显的声音或闪烁LED 灯(LED light)，这也很常见，让您知道他们正在尝试做什么。
例如，在我们的蓝牙耳机(Bluetooth headset)上，我们必须按住“电话接听(phone answer)”按钮 3 秒钟，它就会进入蓝牙(Bluetooth)配对模式。当这种情况发生时，它会发出声音，它的LED灯会交替变为蓝色和红色。
以我们的蓝牙(Bluetooth)便携式扬声器为例，要使其进入配对模式(pairing mode)，我们必须按住其电源按钮(power button)几秒钟。为了让我们知道它已进入此状态，扬声器会闪烁其蓝色LED 灯(LED light)。
第 4 步(Step 4)。使用您的iPhone 或 iPad(iPhone or iPad)搜索蓝牙设备并(Bluetooth device and pair)与之配对
返回您的iPhone 或 iPad(iPhone or iPad)并返回其蓝牙(Bluetooth)设置。在此屏幕上停留片刻，您的智能手机或平板电脑就会搜索(smartphone or tablet searches)附近任何可配对的蓝牙设备。(Bluetooth)找到它们后，它们会显示在列表中。
识别您要连接的设备，然后点击它。只需几秒钟，您的iPhone 或 iPad(iPhone or iPad)就会配对并连接到它。
现在您可以通过蓝牙连接(Bluetooth connection)到您的iPhone 或 iPad(iPhone or iPad)开始使用您的设备。
如何断开蓝牙设备(Bluetooth device)与iPhone 或 iPad的连接(iPhone or iPad)
如果要断开已连接到iPhone 或 iPad(iPhone or iPad)的设备之一，最快的方法是关闭该设备。
但是，如果您愿意，也可以使用iPhone 或 iPad(iPhone or iPad)断开连接。为此，请打开设置(Settings)应用程序，然后打开蓝牙(Bluetooth)。在蓝牙(Bluetooth )屏幕上，找到您要断开连接的设备，然后点击其右侧的“i”按钮。("i")
在下一个屏幕上，点击断开连接(Disconnect)，您的iPhone 或 iPad(iPhone or iPad)将不再连接到该蓝牙设备(Bluetooth device)。
如何忘记iPhone 或 iPad(iPhone or iPad)上的蓝牙设备(Bluetooth device)
如果您想忘记之前连接过iPhone 或 iPad的(iPhone or iPad)蓝牙设备(Bluetooth device)，您也可以这样做。但是，如果您这样做并且想要连接到该设备，稍后，您必须重做我们在本指南中讨论的所有配对过程。
要忘记蓝牙设备(Bluetooth device)，请打开设置(Settings)应用程序，然后打开蓝牙(Bluetooth)。在蓝牙(Bluetooth )屏幕上，找到您要断开连接的设备，然后点击其右侧的“i”按钮。("i")
在下一个屏幕上，点击忘记，(Forget, )您的iPhone 或 iPad(iPhone or iPad)将不再识别您的设备。
您是否在iPhone 或 iPad(iPhone or iPad)上使用蓝牙(Bluetooth)连接？
蓝牙(Bluetooth)是现代世界的一项伟大发明，大多数人都喜欢它。你为什么不喜欢一种让你免于电线的技术呢？您是否将许多蓝牙(Bluetooth)设备与您的iPhone 或 iPad(iPhone or iPad)一起使用？使用下面的评论部分告诉我们您对 iOS 上的蓝牙的感受。(Bluetooth)
How to connect Bluetooth devices with your iPhone or iPad
Most of our portable devices have a Bluetooth chip inside. It allоws us to connect them to other deνices wireleѕsly, over short distanceѕ, and get rid of the need to use wires. That is especially truе whеn you want to connect a headsеt, a portable speaker or other similar devices to yoυr iPhone or your iPаd. That is why we thought it would be a good ideа tо show how to connect Bluetoоth devices to your iPhone or iPad:
NOTE: This guide applies to iOS 11.3.1, and it was created using an iPhone SE. If you are using a different version of iOS, an iPad or a different iPhone model, our screenshots might be slightly different from what you see on your screen, but the steps involved should be similar.
Step 1. Enable Bluetooth on your iPhone or iPad
Regardless whether you want to connect a Bluetooth headset, a pair of headphones or a portable speaker to your iPhone or iPad, the process is the same. First, you have to turn on Bluetooth on your smartphone or tablet. A way to do it is to open the Settings app, tap on Bluetooth and then enable the Bluetooth switch.
However, there are other ways to turn it on too, and we have covered them in this tutorial: 3 ways to turn Bluetooth on and off, on an iPhone or an iPad.
Step 2. Power on the device that you want to connect to
The second step is to start the Bluetooth device to which you want to connect your iPhone or iPad. Usually, that means pressing its Power button or Power switch. To make it easier to understand, we take as an example a Bluetooth headset and a Bluetooth speaker.
Our Bluetooth headset has a Power switch which must be turned on for it to run:
The Bluetooth portable speaker has a power button that must be pressed for it to turn on.
Step 3. Make your device enter Bluetooth pairing mode
Next, you must make the device that you want to connect to, enter Bluetooth pairing mode. This can differ from device to device, but usually, it means either pressing a dedicated "Bluetooth pairing mode" button or by pressing the power button for a few seconds. It is also common that devices that have entered Bluetooth pairing mode will make a distinct sound or blink a LED light, to let you know what they are attempting to do.
For example, on our Bluetooth headset, we have to press the "phone answer" button for 3 seconds, and it goes into Bluetooth pairing mode. When that happens, it makes a noise and its LED lights turn blue and red, alternating.
In the case of our Bluetooth portable speaker, to make it enter its pairing mode, we have to press its power button for a few seconds. To let us know that it has entered this state, the speaker blinks its blue LED light.
Step 4. Use your iPhone or iPad to search for the Bluetooth device and pair with it
Go back to your iPhone or iPad and back into its Bluetooth settings. Stay on this screen for a while, and your smartphone or tablet searches for any nearby Bluetooth devices available to pair. When they are found, they are shown in a list.
Identify the device that you want to connect to and then tap on it. In just a few seconds, your iPhone or iPad should pair and connect to it.
Now you can start using your device through the Bluetooth connection it has to your iPhone or iPad.
How to disconnect a Bluetooth device from your iPhone or iPad
If you want to disconnect one of the devices that you have already connected to your iPhone or iPad, the fastest way to do it is to turn that device off.
However, if you prefer, you can also disconnect it by using your iPhone or iPad. To do that, open the Settings app and then Bluetooth. On the Bluetooth screen, find the device that you want to disconnect from, and tap on the "i" button to its right.
On the next screen, tap Disconnect and your iPhone or iPad will no longer be connected to that Bluetooth device.
How to forget a Bluetooth device on your iPhone or iPad
If you want to forget a Bluetooth device to which you have connected your iPhone or iPad in the past, you can do that too. However, if you do this and you want to connect to that device, later on, you must redo all the pairing process that we have talked about in this guide.
To forget a Bluetooth device, open the Settings app and then Bluetooth. On the Bluetooth screen, find the device that you want to disconnect from, and tap on the "i" button to its right.
On the next screen, tap Forget, and your iPhone or iPad will no longer know your device.
Do you use Bluetooth connections on your iPhone or iPad?
Bluetooth is a great invention of the modern world, and most people love it. Why wouldn't you love a technology that saves you from wires? Do you use many Bluetooth devices together with your iPhone or iPad? Use the comments section below to tell us how you feel about Bluetooth on iOS.
