DOSS Deshi DS-1822 Music Cat Smart Audio Use & Dismantling

Foreword:

Air04 has the habit of listening to radio news or listening to books while doing manual production. In the past, Desheng Radio was used, but if you want to listen to a favorite program, you have to listen to it at a fixed period of time, which is not very convenient and is not suitable for a fast-paced life. Use the phone + Bluetooth speaker, take the phone away from the speaker too far, the sound is intermittent. Put the phone on the table at your fingertips, and you're afraid of falling. So I started looking for a simple device that could solve my problem --- smart audio .

Smart audio is actually called smart radio more appropriate. Different from regular radio receiving FM, smart audio is directly connected to WIFI to obtain network resources for direct broadcast . It is more stable than FM radio in the room, and it can also listen to national broadcasting without geographical restrictions . And not the same with the ordinary Bluetooth speaker, whether control the phone in the smart speaker wifi range does not affect the playback of the content.

Unpacking:

Two boxes, one body and one silicone sleeve. The silicone sleeve was priced at 19.8 yuan, and was purchased under the merchant’s recommendation.

Kraft paper packaging is relatively simple.


The inside of the main body is relatively simple.


The back parameters of the package, it is worth noting that Bluetooth 4.0 and 2.0G memory.

Very yellow and violent...


Main body, data line, manual


The keys on the body are not too many, but some of them have physical keys. Personally feel that the touch of physical keys is much better than touch keys.

Clicking the favorite button while listening to the program will store the content in the built-in memory so that the stored content can be played even if the screen is disconnected. A total of 2GB of built-in storage, I still do not use the end.

Although the display is small, the title of the display is a horse-racing player, which also makes up for the inability to display long titles.


The long press of the power button is the switch, and the short press of the power button switches the Bluetooth speaker mode and WIFI listening mode.

There are three different defaults in the system: music collections, my broadcasts, and section subscriptions. The list of different categories can be switched by short pressing this button.

The last button is the answer button for the phone in Bluetooth speaker mode. There is a difference between long press and short press. The function corresponds to the need to see the mobile phone system, which is generally to answer, hang up and make calls. Pressing this key in smart speaker mode will enter voice recognition status, similar to siri, which can help you search for what you want to listen to. So even if it is out of the control of the mobile phone, the speaker also has a certain ability to operate.

The volume control knob has a limited rotation angle and cannot rotate 360 ​​degrees, just like the old ceiling fan. The disadvantage of this is the feel, but you can know the approximate volume before turning it on. You can turn it on to a minimum to avoid being scared by the start-up music. The maximum volume of this small speaker has reached 107 decibels! Open to the maximum volume in the middle of the house can cover the entire 200 square meters floor. (Can also hear downstairs, not very clear)


The wifi pairing button was designed to be on the back of the fuselage. It was really a good meal to begin with, and it was also safe to prevent accidental contact by placing it on the back. The charging uses the MicroUSB interface and is common to most Android phones.


2200mAh always feels a bit less, and it can actually support 3~4 hours of medium volume playback.


Connect & use:

The purpose of the existence of smart devices is to make life simpler and more comfortable, and Alibaba Smart APP's pairing avoids cumbersome settings.

The entire process can be easily bound in just 5 steps. In order to screen the process, continuous binding untie five times without disconnection and difficult to connect, it can be seen as stable. Some smart devices will always encounter some trouble when they bind for the second time.


Ali's smart operating interface is simple and the smart speaker control is as simple as a Bluetooth speaker. Choose your favorite song or listen to the content will automatically start playing, and subscriptions are operating have a very clear reality recorded voice prompts, plus each key has a carved pattern for visually impaired people have a very significant help.


蜻蜓FM contains a complete collection of what's worth buying audio , don't miss it. After you start playing, you can press the heart to save, or you can directly subscribe to update.

蜻蜓FM has been developing for several years and its content is very rich. I believe you can always find favorite shows and songs.


Dismantling & Manufacturing Analysis:

The appearance and function of the music cat follow the concept of "no design is the best design" (sorry I am sorry). Its internal workmanship is impressive enough


The fuselage uses two sizes, a total of 4 screws to fix


After opening, you can clearly see the internal structure


There is a sponge between the edge of the back cover and the fuselage, which plays a role of fixation, sound insulation and shock absorption. Sponges like this are very common in the body.


Amazing independent bass unit. Before dismantling, I always thought that there was only one speaker


The woofer unit is screwed to the back shell and a ring of sponge surrounds it to stabilize and stop the shock.


This cable carries the bass unit, WPS button, reset and charging functions


There are also stop-motion cottons between the button area and the back cover.


Volume control knob

Two screws


The volume control knob also includes a shock-absorbing sponge


The inner fly line wrapped the sponge slightly thicker. Effectively prevents the noise generated by the bass under the impact of the wire


Each connector has red glue to fix it.


2200mAh capacity 18650 battery with protection board. The internal space of the horn body is still relatively abundant. Replace the battery or use double 18650 parallel connection. Playability is not bad, life time can be easily increased.


Main speaker close-up


Smart chip close-up, the entire chip is plugged onto the motherboard and can be unplugged and replaced.


Unlike the usual practice of Xiaomi’s smart devices, this smart chip uses a separate antenna instead of a traditional circuit printed antenna.


Antenna close-up


Close up again. The measured signal quality is better than most mobile phones (iPhone6s)

The smart control chip uses the MTK scheme. MT7688AN


Winbond memory


After watching the smart motherboard continue to watch the body motherboard. The on-board 2GB memory parameter is actually a 2GB TF card inserted in the memory slot. If you want to upgrade the memory capacity, you only need to replace the TF card yourself. This is a simple solution.


Master, comes with Bluetooth


Bluetooth antenna


The capacitor is additionally fixed with glue. What is this? Capacitance is also generally not fall off.


Body motherboard front