最佳蓝牙FM发射器汽车套件指南

Car radios have been around since the 1920s. In the early days, they were considered a luxury option. A radio could easily raise the cost of your car by 25 percent, which is hard to imagine today. But as technology got cheaper, radios quickly became standard on all automobiles. By the 1960s, you didn’t even have to ask. People just assumed that a new car came with an AM/FM radio. Further innovations included 8-Track players, cassette players, and CD players. Nowadays, you can buy cars with built-in satellite radio, and even play DVDs in the back seat. But even with all of those bells and whistles, the old-fashioned AM/FM radio still remains.

这导致创建了一些有趣的设备。多年来，人们一直在使用无线电FOB来连接尚未在汽车中的音频源。没有CD播放器？只需将您的便携式播放器插入无线电FOB，然后将您的汽车调整到适当的车站即可。突然，您可以收听CD，并且可以在不升级音响系统的情况下完成。而且，由于并非所有汽车都支持蓝牙，因此人们现在正在做同样的事情。使用负担得起的发射器，您可以无线连接手机。这否定了需要3.5毫米辅助线或用于iPhone的适配器电缆。

我们将要查看您的汽车最好的三个最佳蓝牙发射机。我们将从Nulaxy KM18蓝牙FM发射器开始。该发射器具有防止静态的噪声设计。接下来，我们将检查Sumind无线蓝牙FM发射机。该发射器支持QC 3.0通行充电，因此您可以以最高速度为iPhone或三星充电。最后，我们将查看Besign BK01蓝牙汽车套件。这根本不是无线电发射器。这是一个通过3.5mm Aux线连接的蓝牙接收器。哪一个将是满足您需求的正确选择？

Nulaxy KM18 Bluetooth FM Transmitter

Nulaxy is a respected technology manufacturer we’ve looked at in the past. They’re not the people who make your favorite laptop or smartphone. They’re the folks who make your favorite accessories, like theirergonomic laptop riser。

这Nulaxy KM18 Bluetooth FM Transmitterconsists of an LCD display and controls, mounted on a gooseneck riser. The riser is only about three inches long, but it’s adjustable enough to point the screen in any direction. It’s also stiff enough that you don’t have to worry about it drooping over time. At the bottom, it connects to a plug, which you insert in your car’s power jack. This plug has a USB port on the back end, so you can still charge your phone while you’re using the transmitter. It’s a 5-volt, 2.1-amp connection, so you’re getting a little over 10 watts instead of a full 12 watts. That’s still more than enough to charge your phone, though.

You can order the KM18 in six different colors, including glossy and matte blacks. This gives you a little bit of flexibility to match your transmitter to your car’s interior. The LCD display is fairly small, but it’s still easy to read. At any given time, the screen only shows a small amount of information. As you push buttons and move the dial, the screen will switch to showing the data you need. For example, when you go to adjust the radio station, the station number will be shown. By default, the screen will show your current audio source, and the name of the track that’s playing.

屏幕下方有四个按钮和一个拨号。这些用于调整车站，跳过轨道并选择您的音频源。您还可以单点启动免提呼叫。

音频格式和质量

Nulaxy KM11支持蓝牙5.0和较低的无线协议。5.0是当前标准，大多数现代智能手机都使用。结果，您几乎可以通过任何手机获得最佳的连接。蓝牙5.0提供了最低的延迟，最高的音频比特率和最稳定的信号。也就是说，KM11将与蓝牙4.2及以更早的早期合作。除了使用蓝牙外，您还将还有其他几种播放音乐的选项。您可以使用3.5mm辅助电缆插入发射机，完全预言无线连接。您也可以直接从Micro SD卡播放MP3文件。

这button on the back of the dial functions as a one-touch button for phone calls and your voice assistant. This makes it easy to access everything on your phone without needing to use your hands. Calls are clean and clear, without a lot of clutter and background noise. The audio quality is similarly good when you’re listening to music. This is because the KM11 has built-in noise-reduction circuitry to prevent interference. It keeps you from getting static as a result of the car radio’s grounding system.

Sumind无线蓝牙调频发射机

这Sumind无线蓝牙调频发射机表面上类似于Nulaxy发射器。它由显示和控制在鹅插座上的显示器组成，并连接到插头上。也就是说，有几个值得指出的区别。首先，插头具有内置的汽车保险丝。如果有动力激增，保险丝将吹响而不是损坏您的手机或发射器。另一个重要的区别是，插头的背面具有两个USB端口，而不是一个端口。顶部是一个标准的12瓦端口，但底部是QC 3.0端口，最多可提供18瓦。结果，您将能够以最大速率为iPhone充电。就其价值而言，您还可以获得五种颜色选择，而不是六种。

这display is a bit more detailed than the screen on the Nulaxy. It shows more information at once, with much of it spread across the top of the screen. This is possible in large part because the screen is a bit wider, so there’s more space. To the left, you’ll find the buttons for adjusting the radio frequency. To the right, another pair of buttons allows you to advance and reverse tracks. At the bottom, there’s a dial and a push-to-talk button, just like on the previous transmitter. Once again, there’s nothing terribly complicated, so you can learn how to use it in just a few minutes.

音频格式和质量

One disappointing feature of the Sumind transmitter is its Bluetooth 4.2 wireless connection. This is an older protocol, so you won’t get the maximum performance from modern devices. Most people won’t notice a difference. But if you’re an audiophile who likes high-bitrate music, you might notice a decrease in quality. That said, Bluetooth 4.2 does have one advantage over the newer 5.0 protocol. It has a longer range of 66 feet, instead of Bluetooth 5.0’s range of only 33 feet.

Like the Nulaxy, the Sumind transmitter can also be connected via a 3.5mm aux cable, and accepts Micro SD cards. However, it offers a bit wider compatibility with different audio formats. In addition to MP3s, you can also listen to songs that have been saved in the WMA format. This will be of little use to iPhone users. But the WMA format still has its place on other platforms.

One thing the Sumind transmitter does very well is voice calling. To begin with, it has its own built-in microphones. It doesn’t have to rely on your smartphone mic in order to pick up your voice. This gives you the freedom to keep your phone in your pocket, even when you’re making calls. Moreover, the mics are wired into a Qualcomm CVC 8.0 chipset. This technology analyzes the audio input and focuses on your voice. Then, it eliminates background noise like traffic and wind. It’s not 100 percent perfect, but it makes a major difference in how well the other person can hear you. You won’t have to shout to be heard, and they won’t have to struggle to hear you through the clutter.

BESIGN BK01Bluetooth Car Kit

BESIGN is a manufacturer of automotive audio accessories, such as theirground loop noise isolator。它与最后两个选项有所不同，因为它没有FM发射器。它纯粹是用于无提呼叫的蓝牙界面，并且连接到3.5mm的AUX端口。结果，它仍然可以用来连接到不支持蓝牙的汽车。您只是做一些不同的事情。

这main component of theBESIGN BK01is a disc-shaped control surface that also contains the speaker and mics. It measures 1.57 inches in diameter, so it’s fairly compact. The back is magnetic for easy mounting, although the kit also includes a 3M adhesive for attaching to plastic. The front surface of the disc consists of a pair of buttons to either side. These are used for skipping audio tracks, and are easy to manage even when you’re looking at the road. The central button is used for making and answering phone calls. It’s also used for activating your phone’s voice assistant.

该设计的一个主要缺点是没有实际显示。您看不到没有拿起手机的曲目正在播放哪些曲目或任何其他信息。另一方面，由于您没有调整任何无线电发射器，因此通常不需要。除此之外，您真正需要看的任何东西都可以等到您停下来。

连接电缆耗尽主机的底部，长度为37英寸。它以分离器结束，该分离器将进入两条较小的电缆。第一个是提供电源的11.8英寸USB线。第二个是更长的35英寸3.5毫米辅助线，用于插入您的汽车中。USB线可以插入任何USB电源。但是，该套件带有双重充电器，可用于您的电源端口。这样，您可以插入BK01，并且仍然有第二个USB端口。

音频格式和质量

这BESIGN BK01connects your Bluetooth device to your car’s 3.5mm aux port. That’s it. There’s no SD card option, and no way to plug anything else into the control unit. The wireless connection is also an older Bluetooth 4.1 protocol. That said, audio quality and call quality are both surprisingly good. Remember how we mentioned that BESIGN is known for their ground loop isolators? Well, there’s one in the middle of the BK01’s 3.5mm aux cord. This cuts out static, and makes the audio sound as clear as if your source was hardwired. You’ll notice a big difference compared to non-isolated transmitters.

Final Verdict

那么，这将离开我们的地方？哪种蓝牙发射器是您的正确选择？我们首先看着Nulaxy KM18 Bluetooth FM Transmitter。This transmitter gives the best audio quality over the radio waves. Its noise-reduction circuitry makes a big difference here, and puts it a cut above the competition. The design is also nice and sturdy, with a gooseneck that’s neither too stiff nor too loose. Finally, the controls are easy to operate, so there’s not much of a learning curve.

这Sumind无线蓝牙调频发射机is the best choice for hands-free calling. It has its own built-in mics, and the CVC 8.0 chipset removes most background noise. The QC 3.0 charging port is also a major plus, since you can charge at a full 18 watts. The only feature we didn’t like was the Bluetooth 4.2 connection, which is a bit dated.

这BESIGN BK01Bluetooth Car Kit提供最好的音质。地面loop noise isolator goes a long way to eliminating the maximum amount of static. That said, this isn’t an FM transmitter. You need to plug it into your car’s 3.5mm aux jack. But as long as that’s not a problem, you’ll appreciate the performance.