Nowadays, considering that life and work do not interfere with each other, many people go out with dual phones. Of course, this situation is particularly obvious for people who use iPhones. The reason why they have to be depressed is that although half of the smartphones in the Android kingdom have already been the standard configuration of dual card and dual standby, the iPhone still adheres to the stereotype of single card and single card, It is still a single card, so it has created a lot of dual talents who have to do with Apple and Android.

Fortunately, this dilemma has been accompanied by the appearance of the "Shuang Xiang Hao" small artifact, which is about to be launched in the near future. It has solved this knotty problem that has puzzled many people for many years, and all the puzzles have been solved from this seemingly unattractive kraft paper bag.

| Product appearance

Judging from the contents of the paper bag, it is really so simple that the author once doubted whether this "gadget" is reliable. A black "double sharing number" main body (in fact, there is a white version), a card taking pin, an ear plug hole rope sleeve, a Nano Micro SIM card sleeve, and a simple instructions for use, Of course, if I tell you that the price of this small artifact is only 68 yuan, I believe you can understand and tolerate it.

First, I'd like to share its working principle with you. According to the manufacturer's explanation, the "dual sharing number" uses the mechanism of separating SIM card authentication and communication. First, the hardware chip is responsible for the authentication and authentication of the SIM card, and it is transmitted to the corresponding mobile phone APP through the bound Bluetooth, and then transmitted to the operator's server through the mobile phone's IP channel, Finally, the operator sends back the information to the APP through the Internet, so as to achieve complete call and SMS functions.

The seemingly complicated working principle is actually the hardware part is integrated into a plastic shell with a size of 4.5 x 2.5 x 0.6cm, and the 6.3g weight can hardly feel its existence. In addition, only one physical button for controlling Bluetooth connection is designed on the front of the shell of the whole "Double Sharing Number" body, so the subsequent manipulation is completed on the APP.

It is worth mentioning that the "dual account" has excellent endurance. It can be used continuously for 15 days after 30 minutes of charging, and it can ensure that your number is always online, which can be regarded as a very convenient and easy job; However, it is a bit regrettable that because the charging port is a Micro USB interface, because there is no standard charging line, Android users have no problem. Mainstream Android phones can use its charging line directly. If it is Apple's loyal fans, it may be difficult. Therefore, the author suggests that a package with dual-use charging lines similar to the one I used can be launched when it is officially launched.

Before official use, you need to remove the product and install the SIM card. The removal process is relatively easy. Use a little force to find a corner notch on the edge to open the back cover. Judging from the combination of buckles, this "Double Enjoyment Number" is not waterproof. It is believed that most consumers still want to have a certain degree of waterproof ability. Therefore, the author suggests that the simplest way to work is to add a ring of sealing rubber ring at the rear cover joint.

The communication card slot of the "Double Sharing ID" is Micro SIM. Fortunately, a conversion card sleeve is provided in the accessory. The author's Nano SIM can go into action immediately after wearing the "vest". Remember to restore and fasten the back cover after assembly according to the marking direction.

| Function application

If it is finally used officially, it is necessary to download the exclusive APP first and scan the QR code on the product manual. There is nothing special to pay attention to IOS, because the Apple phones still in use basically meet the requirements of software and hardware versions; However, Android requires Bluetooth 4.0 and Android 4.3 mobile phones.

After using and running the APP for the first time, you need to register your ID with your mobile phone number according to the prompts. From the warm prompts given here, we can see that at present, the "dual account" only supports China Mobile/China Unicom SIM cards, and China Telecom is expected to fully open later. As it only provides communication services, that is, answering and making calls and sending and receiving SMS messages, it does not involve network problems, Therefore, whether it is a 3G card or a 4G card as the support, there is no difference. It should also be noted that the mobile phone number for ID registration can be the number of the calling mobile phone or the SIM card number loaded in the "Dual ID" box. The only difference is that the number verification methods are different. In addition, remember to turn on the notification push function of the "dual account" app, or you will not hear the ringing reminder of an incoming call.

After the successful registration and binding of the product, you will be prompted to access the phone's address book. If there is no special consideration, you can naturally choose to allow. At the same time, the address book in the APP also supports adding contacts. At this point, you can read and dial the contact number at any time in the communication menu of the home page. Of course, before calling out, there will be a plug-in prompt to select SIM card 1 (SIM card dialing in the phone) or SIM card 2 (that is, dialing through the SIM card in the "Double Sharing Number" box).

Finally, remember to allow access to the microphone, so it is a bit cumbersome to use it for the first time. If you habitually click "Not allowed", the other party will not hear your voice during the call. It can only be solved by going to the settings menu to find the "Dual ID" application and re opening it. The main number of my mobile phone is Mobile 4G. The measured response speed of the SIM card calling through the "dual sharing number" is much faster than expected. The time difference between the call response and the normal call response is only 1-2 seconds. The most important thing is that as long as the mobile data or WiFi network is normal, the quality of the call can not be felt any difference.

In addition, in terms of function settings, the online status of the SIM card in the "Dual ID" box, including the remaining power and pairing, is the main feature. The system language supports English in addition to simple and complex Chinese. It should be said that overseas use is expected to be very popular. In the phone setting menu of "Double Sharing Account", you can set the voice, vibration and simple settings without disturbing or the time difference rest mode. You can save the settings according to your personal needs.

When an external phone calls the SIM card in the "Dual Sharing Account", in addition to the ringing tone, it will also be displayed on the phone in the form of a pop-up window. After selecting "Phone", the familiar interface for answering a call will pop up. You can decide whether to answer or reject the call. However, at present, ringing tones do not support customization. Another annoying problem is that even if the ringing tones are turned off in the system settings, the phone will still sound when incoming calls are made. We hope that future version upgrades can solve this problem.

| Concluding remarks

From the perspective of just need, in general, this "dual account" has given the fans of single card a lifeline with its absolute price advantage, especially the support of the follow-up telecom version. I believe that many relatives and friends around the author will be eager to buy and buy. After all, it is a relief not to carry a dual computer for a long time, especially for men without backpacking habits, From then on, the trouser pocket can not be so symmetrical.

Of course, in addition to the price advantage, it also includes the compact and lightweight shape, and the super long standby time are all relatively positive selling points; The cost advantage and stable communication quality based on the network also make the "double sharing number" more reliable. However, the details that still need to be optimized at present are also mentioned in the article. For example, the refinement of the mold and the perfection of the APP function settings are expected to be the primary considerations. After all, many iPhone users value the experience most.

(Image and text: light and shadow of monkey ）