According to my visual inspection, cars running on the road at present have reached the scale of bicycles in the 1980s, and with the market and the "people"'s just demand for spiritual life, the on-board music equipment has become a branch, surging in spring and booming The car Bluetooth player also came into being. It is rumoured in the Jianghu that this car Bluetooth player mainly promotes the combination of music playing and car charging, which is known as a necessary device for cars. This time, I was lucky to take advantage of Lei Feng.com to try it for free. So what is the ROID MI mobile Bluetooth player? Will it become a leading brand in the car Bluetooth player industry? It's really small by visual inspection, but can it work? Now I will honestly confess my trial to all friends, and witness with you whether it can work or not.

Ruimi Mobile Bluetooth Player is a product produced by Ruimi Technology that combines mobile charger and Bluetooth player. I have also been exposed to several car chargers and Bluetooth audio systems, and I have heard some car riders complain about the slow charging speed of ordinary car chargers, the quality defects, and the fact that they do not fall. Although I have heard little about the problem of responding to the Bluetooth player, the distortion of the audio quality is very common. Now, what Remi does is to combine two functions into one. Can this little thing be small and powerful? Can we solve the defects of the two products in reality? Follow me!

First sight

▲ ROID MI The outer package of the car Bluetooth player is very simple. The logo is on the front, but I want to complain about it. Although I personally like this "simple package", it is really good, but I feel that it is too homogeneous with the packaging boxes of some products on the market, that is to say, I can see it everywhere. I want to give it to my friends as a small gift, but since it is a gift, I prefer something more beautiful and personal. The back of the box is about some parameters of the product.

▲ The packaging box is opened by pulling, and the interior upholstery is also in the style of outer packaging. After opening, the Bluetooth player is displayed in front of us.

▲ The inner package carries the main body of the player and the instructions. To be honest, the package has been enlarged. In fact, it is also a small package box, and there is only one instruction manual in the package box. It is estimated that the manufacturer is for the convenience of packaging. If the cost is considered, the shouting of the package is a bit wasteful. The USB end of the host is pasted with a protective film to prevent unnecessary friction from causing damage.

▲ Instructions taken from the inner box

▲ Ruimi（ ROID MI ）The overall player of the car Bluetooth player and other common products on the market are unintentional, but pay more attention to the beautiful design. The shell is made of stainless steel CNC It is carved and shaped in an integrated way. It is very solid Apple Watch Consistent surface workmanship.

▲ The common positive and negative pole shrapnel has also been redesigned here, which is more resistant to plugging than traditional car charging.

▲ The bottom metal surface is the positive pole of the car charger, which is still very bright and looks like a small mirror.

▲ Under normal conditions, the maximum current that the cigar lighter circuit can withstand is generally 10A (Also available 20A ）。 According to the cigarette lighter socket 12V Voltage calculation, if the total power of on-board electrical appliances exceeds 120W , the cigarette lighter circuit will be overloaded. Therefore, if the power of the on-board electrical appliances is too high and the circuit is overloaded, the fate of the battery will be worried. In addition, if the electrode falls off and forms a short circuit due to a fault, the fuse will also be burned. Therefore, Ruimi still has a lot of considerations in this regard. It uses an integrated design to increase the contact area and heat dissipation area to eliminate this problem.

▲ Ruimi（ ROID MI ）The appearance of the mobile Bluetooth player uses the same manufacturing process as the mobile phone, which is made by one-time seamless injection molding, with a delicate and simple appearance. The top surface shall be sanded to prevent multiple plugging and scraping.

▲ The mirror polishing process is used on the side. Although it is more harmonious with the surrounding environment, there is still a risk of scratching. The positive contact is a refined stainless steel electrode, and Apple  Watch  The consistent surface process uses refined stainless steel and multiple processes of polishing to create a crystal clear mirror effect.

▲ High quality polycarbonate is used V0 The flame retardant thickness of materials shall be controlled within 1mm , reaching the flame retardant level of automobile environment.

▲ Carefully made metal top cover, ultrasonic pressure welding into an integrated structure, just for that bright halo

▲ Considering the problem that the product is prone to yellowing due to long-time sunshine in the car, after hundreds of ingredient debugging, it is ensured that the product can still maintain a smooth and clean appearance after years of use.

▲ Ruimi（ ROID MI ）In car Bluetooth player compared with my original FM The transmitter, first of all, is much smaller, which is perfect in both technology and performance!

▲ Ruimi（ ROID MI ）The total output current of the dual ports of the on-board Bluetooth player can reach 3.1A ， two individual USB Charging port, single port maximum current 2.1A , Adapt input voltage 12/24VDC , the world is unimpeded.

▲ The ROID MI on-board Bluetooth player can be plugged into the cigarette lighter socket. Of course, other 12V sockets in the car can! Its compact body and exquisite shape will not affect the operation when placed on the vehicle. In addition to the Bluetooth FM function, the Ruimi mobile Bluetooth player also integrates two USB sockets to provide a maximum 2.1A 5V voltage output. By default, when the power is turned on, the two USB sockets are blue backlight, and when connected, they are orange red backlight. This design with backlight can prevent blind plugging of USB sockets at night. At the same time, it can also add some beautiful colors to the car space!

▲ At USB There are QR codes on the protective film and the instruction manual of. Scanning the QR code can be downloaded and installed APP , you can install successfully in APP Link to Ruimi car Bluetooth player and set related functions.

▲ The ROID MI car borne Bluetooth player can be installed in three simple steps in one minute, without any complicated wiring and lengthy settings. Just download and install the "car borne Bluetooth FM" App, plug the player into the cigarette lighter socket in the car, and then use it automatically through App settings.

▲ Ruimi（ ROID MI ）The screenshot of my mobile phone and the connection process when the car Bluetooth player finds it. It can only be used normally when connected to my mobile phone via Bluetooth four Audio playback technology.

▲ In addition to naming and background color, the ROID MI mobile Bluetooth player supports customized items, such as automatically opening the mobile music player, adjusting the FM transmission frequency, and sending ringing tones for incoming calls.

▲ Ruimi has preset one FM Of course, you can also APP Choose a suitable frequency by yourself, as long as the frequency is an idle frequency point, which can avoid the local FM Radio stations can avoid the same frequency interference. My preset frequency is FM96.4 。

feel

After several days of actual use and audio testing, I think the sound broadcast on the car speakers after Ruimi transmission is ideal. As long as the music downloaded from your mobile phone is helpful enough, the effect of playing through the car stereo is good enough. As for me, I have not found any sound loss. Due to the frequency modulation, the background occasionally has a little noise, but the noise is also very small, and the dynamic response range of Ruimi is still large. From the distance, effective transmission can be achieved within 5 meters, without obvious noise, but the noise increases after more than 5 meters. If used in the car, the sound quality is guaranteed.

summary

First of all, in terms of appearance, the Ruimi car borne Bluetooth player is exquisite, simple, fashionable and elegant, and will not lower the level of the car with any model. From a practical point of view, Ruimi's positive contact adopts refined stainless steel electrode, with a flame retardant wall thickness of 1mm | flame retardant temperature of 750 ℃, a high flame retardant standard of real materials, and effective prevention of fire hazards should be more safe. Two USB charging ports, single port maximum current of 2.1A, adaptive input power of 12/24VDC, compatible with all kinds of mobile phones and tablets, provide eight circuit protection, The power conversion rate reached an astonishing 91%, comprehensively improving the charging efficiency. The ROID MI mobile Bluetooth player is equipped with Bluetooth 4.0 audio playback technology and 3.1A charging capacity. It can also provide USB charging function when listening to music, making it easier for you to listen to music and charge.

Disadvantages:

1、 For my model, the size of the cigarette lighter may be slightly larger, so when the vehicle bumps, the positive pole and the cigarette lighter will not contact well. I can't help but add a layer of plastic filling to make the contact between Ruimi and the cigarette lighter better.

2、 The app has too few functions, so more songs and music recommendation should be added. It is better to integrate more practical functions.