As a HIFI enthusiast, I love every HIFI related fever product. Small to portable front end, portable ear amplifier, portable dac decoding, earphone earplug, pair recording cable, etc; From desktop computers, power amplifiers, decoding dacs, active passive speakers, etc. In recent years, with the rapid development of intelligent black technology, there are more and more cross-border audio products. Among them, there are foreign manufacturers and domestic independent brands. Maybe everyone is optimistic about this market and wants a good share! The so-called cross-border intelligent audio products, in my opinion, have the audio function in the traditional sense, that is, the speaker plays the audio function, but also has a certain degree of innovation and integration, with intelligent linkage connection and other functions. One of the most representative is Apple's airplay product. Foreign manufacturers such as Dana B&O、 Baohua (B&W), KEF, bose, jbl, etc. have all produced such wifi wireless audio products, while domestic manufacturers are unwilling to lag behind, and have also launched wifi audio products, such as Kaiyinsbuck, recently popular Xiaozhi dingdong、 Fruit shell sound, etc. Today, the object of evaluation is o2 cloud sound with voice and gesture interactive experience function. Please note that it is wifi audio. The biggest difference between WiFi audio and Bluetooth audio is the transmission bandwidth and distance, which is also what many enthusiasts are looking for. In other words, why is the price of WiFi audio from foreign brands so expensive, such as Dana and Baohua, while many enthusiasts are still flocking to it. On the one hand, it is the brand effect, unit material and labor costs; The other is core tuning and technical processing. Wifi audio focuses on technical processing. As we all know, Bluetooth is limited by its inherent bandwidth and transmission distance. Even now, Bluetooth 4.0 apt-x is helpless when facing the wav of ordinary CD original disk format. It often appears that it is stuck, not to mention the audio format with high coding rate such as 24bit. The emergence of wifi audio just solves this problem. When the bandwidth reaches 150 Mbps or more and the transmission distance is about 100 meters, it is easy to hear lossless and high coding rate.

▲ The author was surprised to see the packaging box. He didn't expect it to be so large, and it really weighed heavily. It seemed that the materials used were very real.

▲ The shape of goose soft stone is very creative, and the intelligent large eye multi-function display screen makes people love it.

▲ Relevant parameters are marked on the back of the product. O2 Cloud Audio adopts the 2+1 design, which is what we call 2.1. The SW subwoofer is 8 Ω/15W, while the left and right channels are 4 Ω/5W. Such a design will be more energetic and energetic when listening to some low-frequency songs.

▲ The material with black piano paint on the surface is highly reflective.

▲ O2 Cloud Audio family photo includes host power adapter and instructions.

O2 Cloud Audio mainly has the following features: gesture control, voice interaction, cloud based intelligent push, and round touch screen. In today's intelligent audio products, gesture control and touch screen can be regarded as two highlights. In addition, it is officially introduced that O2 uses HIFI level independent decoding chip and Class D digital power amplifier, which makes people look forward to the sound and hearing performance of O2.

▲ The large capacity built-in battery of the o2 cloud audio system itself can listen without the power supply. It is very convenient to turn on the blue indicator light and select your wifi for connection according to the prompt.

▲ The author prompts to upgrade the firmware after connecting to the network after booting up for the first time. Follow the prompts to update.

▲ The biggest feature of o2 cloud audio is voice and gesture operation (gesture control can be turned on in the setting of advanced options). The specific operation method is: click the left side of the audio body to reduce the volume, and the right side to increase the volume; Click the upper part of the audio body to pause or start double clicking to collect songs; Click the lower part to call up the voice interaction function; When gesture control is started, you can also move your arms from left to right in the air to switch songs. Of course, you can also complete the above functions through the big eye touch screen.

▲ Use your fingers to slide the touch screen to complete relevant settings and other operations.

▲ The main interface of the app of o2 Cloud Audio is the choice of listening environment style.

▲ Through this app, you can control the O2 cloud audio wirelessly, and add Douban qq、 Netease and Xiami music services only need to bind accounts, and then select your favorite music to play, which is perfect.

▲ Of course, you can also rename o2 via app.

In general, the high-frequency voice of O2 Cloud Sound is very soft and not too exciting, but it has a little burr. I hope it will improve after a while. The middle and low frequency style of O2 Cloud Sound is mellow and warm, and the thickness of voice color is deliberately increased, which is like the Jess x10 in earplugs as a metaphor. When listening to the songs of feverish female voices such as Tong Li and Liu Ziling, it is obvious that the singer is older and has a thicker voice. I think this tuning style is more suitable for listening to the singer with a lower voice or European and American pop music. In general, as a webcast audio, the sound quality is fairly good, and the outstanding voice gesture interaction function has a good cost performance.

In this age of price based sound, this o2 cloud audio has achieved the goal of "getting rid of mud without pollution". Compared with other miscellaneous brands of smart audio on the market, o2 cloud audio is not inferior to other audio products at the same price in terms of workmanship, appearance, and hearing. In addition, the original voice and gesture control function is so powerful that its playability cannot be underestimated!

advantage:

1. Unique and creative.

2. With LCD display for easy operation.

3. Built in lithium battery for mobile use.

4. The unique voice and gesture operation creates a precedent for intelligent audio.

Suggestion:

        1. The app is too simple and not powerful enough.

         2. It does not support local music and plug-in card playing, but hopes to increase it (imagine that in the absence of network, it would be perfect to add local music or support plug-in card playing)

         3. The success rate of voice interaction needs to be improved.