Introduction

In my impression, speakers of European and American brands are generally of middle and high-end level, such as BOSE, JBL，SONOS。 Today, we are in the era of rapid development of electronic products. China's electronic products, especially consumer electronic products, have surpassed the developed countries in many aspects such as function, update speed, cost performance, etc. Therefore, Bluetooth speakers of Chinese local brands such as Xiaomi and Rambler remain on the hot sales list of Bluetooth audio for years due to their excellent design, stable quality and high cost performance. This time, I got an American brand from Weifeng platform, focusing on outdoor portable speakers. Although this product is still produced in China, which is known as the world factory, the product design is carried out in the United States. Let's take a look at the performance of this audio system designed by Americans.

Open the box after drying

The overall appearance is satisfactory, and the top view of the product is printed on the front of the package. The rectangular box is convenient for storage and transportation. The pure black color makes the product more noble and mysterious. The outer package is made of cardboard. Although the courier has some bumps in the delivery process, there is an obvious drop mark on the corner of the box. However, the products inside were not damaged, indicating that the packaging design has good compression resistance and fall resistance.

There is a QR code of "RAVPower Flagship Store" in Jingdong Mall on the left side of the back of the package. Scan the code to enter the store directly. It seems that this store is a domestic authorized dealer of VAVA brand audio. It can be seen that this product is the main line in China. At the lower right corner of the package is the QR code of the official website of VAVA. Scan the code to enter the official website, but it is in pure English. Generally, the English level of small editors is not introduced here.

After unpacking, it can be seen that the manual covers it, which is not only convenient to read in time, but also can play a role in buffering and protecting the product. When opening the manual, it is gratifying that the manual is in Chinese. This is a little obsessive-compulsive. Every time I open a product, if I find that there is no manual in Chinese, I lose half of my interest in this product. Since the product is sold in China, if there is no Chinese manual, it shows that it is indifferent to Chinese consumers. What else can it sell.

In fact, many people are familiar with Bluetooth audio. If they have used Bluetooth audio, they can basically complete the basic connection operation without looking at the manual. If you haven't used it, you may want to have a look.

In addition to the manual package, there are Micro USB charging cable, 3.5mm audio cable and portable bag. Let me remind you, because there is no USB charger plug in the package of the USB interface, I think it is still very good. If you charge, you can use your own mobile phone charger. I believe many people have a dozen USB charging heads in their hands. Anyway, there are at least five or six small producers. It not only avoids waste and achieves the goal of environmental protection, but also reduces the cost and price of products. Why not.

Talk about functions

Two indicators are designed on the top of the product, and the left side is the three section power remaining indicator. In order to achieve the power saving effect, this indicator will light up when you press the power button, but it is not always on. You should pay attention when you use it. Although it is a little inconvenient, it is also good if you can save some power to extend the standby time. The other in the middle is the Bluetooth connection status indicator. It flashes when waiting for connection, and turns on normally after connecting the device. There is also an NFC auxiliary link area logo in the middle. Users can use NFC to connect audio and Bluetooth devices more quickly.

In addition, there are four physical buttons on the top of the product, from left to right: power, answer/pause, volume up, and volume down. Compared with tactile buttons, Xiaobian prefers physical buttons. Although they lack a sense of technology, physical buttons can effectively prevent accidental touch, including accidental touch when carrying, when touching outdoors, when touching with water. At the same time, a good key has a good press feedback feeling, which is also a good use experience.

If you are a detail oriented person, you should like the key design of this product. In order to achieve a certain waterproof effect, the upper surface of the audio system is covered with a whole piece of rubber material. The thickness is moderate, so that the touch of the keys will not feel too fleshy and frivolous.

There are two tweeters and a bass generator on the front of the product. There is a partition between the tweeter and the bass to prevent mutual influence from damaging the sound quality. Among them, the tweeter unit is two independent 8W X dynamic coil full frequency speakers with a size of 1.8 inches. According to the official introduction, this audio also uses micro volume resonant bass technology to produce better bass effect in a small resonant cavity.

The front and rear two rectangular bass units are used in the bass part of the portable audio system, and the common one is a bass unit. Due to space, the front woofer is smaller than the rear woofer. The front woofer is 2.7 inches, and the rear woofer is 4.3 inches. Passive dual-mode resonance technology is used in the bass part to make the bass dive to 60HZ as low as possible.

The bottom of the product is also covered by the whole rubber material similar to the top, which makes the overall design of the product more consistent and increases the aesthetic feeling. Protruding foot pads are designed at the four corners, so that the product can be more easily and stably placed on the outdoor uneven ground. At the same time, it can also absorb the low-frequency vibration generated when the bass unit sounds, and avoid noise.

The back interface is 3.5mm audio interface, Micro USB charging input interface and USB charging output interface from left to right. This audio system is equipped with 5200mah lithium battery. The charger is recommended to be 5V/1.5A, and the charging time is about 6 hours. It takes about 10 hours to simply use the music playing function (normal volume). At the same time, this stereo is designed for outdoor portability, so the built-in lithium battery can charge mobile devices such as mobile phones and sports cameras in emergency. The output current is 5V/1A, which basically meets the general demand. Fast charging is impossible.

Measure the sound quality

After listening to this audio system in the room, I felt quite satisfied overall, especially with the bass part. In this portable size, the two bass units are really much richer than the general portable Bluetooth audio system. When the sound is turned on at the maximum, it feels like a live concert. In addition, there is no weak or obvious noise in the high voice under such low voice.

In order to test the outdoor effect of the sound, Xiao Bian took it to the river to fish.

The appearance of pure black has no sense of discord anywhere. It can be said that black is not only resistant to dirt but also easy to match. The music played continuously for about three hours at normal volume, and the power indicator changed from two lights to one (three lights at full power), which means that about 33% of the power was consumed, basically consistent with the official broadcast time.

The weight of nearly 700g is a bit overweight and acceptable. After all, there is a large battery inside, as well as speakers, bass units, and metal mesh shells. On the other hand, if you hold a stereo in your hand, it will make you nervous if it is light and weightless.

Another rare black technology of this outdoor portable audio is its IPX5 waterproof performance. Maybe I don't know what IPX5 stands for. Here's how to popularize the IPX5 experiment:

Method name: water spray test

Test equipment: the inner diameter of the spray nozzle is 6.3mm

Test conditions: make the distance between the test sample and the spray nozzle 2.5 m~3 m, and the water flow 12.5 L/min (750 L/h)

Test time: 1 min per square meter (excluding the installation area), at least 3 min, calculated according to the surface area of the tested sample shell

To sum up, this product can be used outdoors in rainy days. Although Xiaobian did not test it in person, it has a certain waterproof performance from the perspective of the details of the product's workmanship, including the key covering treatment and the design of the back interface sealing cover.

In the outdoor test, the directivity of the sound is still good, that is to say, after turning the direction of the sound, you can obviously feel the change of the sound size. This can also be said to be both a strength and a weakness.

It is an advantage to see the directivity of sound from the perspective of reducing noise and never influencing others. At the same time, when using outdoors, people may be scattered. If the sound is not directional from the perspective of coverage, people in all directions can hear music with relatively consistent effect.

summary

In combination with the price of 400 yuan, this American designed audio has a simple and smooth appearance design, full texture, and excellent touch of physical buttons. The sound quality is also satisfactory, especially the bass effect. The mainstream Bluetooth V4.0+EDR specification is adopted, which has good power consumption performance, can play for 10 hours continuously, and can simply switch the Bluetooth connection between two devices. In addition, the built-in 5200mah battery can charge mobile devices, and has certain waterproof performance, which is very suitable for family play, and playing the role of music player when outdoor activities alone or among friends. There are two flaws to be said. The rubber upper cover and base are easy to get dusty, and the charging output function does not support fast charging.

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