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Home > New Gear > Xiaomi Bluetooth Key Finder Review and Teardown
Xiaomi Bluetooth Key Finder Review and Teardown

Xiaomi Bluetooth Key Finder Review and Teardown

By  Fields Corrielus 2019-09-16 3553 0

Recently, Xiaomi crowdfunding put on the shelves of a joint search Bluetooth finder, compared with the previous anti-loss device, it is not only upgraded to two-way mutual search with the mobile phone, but also can be used as a remote control to control the phone to take pictures, how on earth is it achieved? Let's take a look at it today.

Xiaomi Bluetooth Key Finder: Appearance

Xiaomi Bluetooth Key Finder

The size of the Bluetooth seeker is 35 mm, 35 mm and 6 mm, which is slightly larger than the SD card and looks like a key chain access card. It uses the white shell plastic shell, the front top three small holes are the buzzer sound hole, in the middle is the joint force to find the Chinese character, below is a circular multi-function key.

Xiaomi Bluetooth Key Finder

A hanging rope is designed on one corner of the Bluetooth seeker, and the detachable hanging rope design can be conveniently hung on the key chain. The back center is printed with the QR code to find the owner, and the bottom left is the information label of the product. From here, we can see that the model of this product is CoTrack1, battery, the CR2032,CR2032 voltage is 3V, and the capacity is generally about 200mAh. The working current of the finder is 0.06mA, so it can provide a long duration.

Xiaomi Bluetooth Key Finder: Using experience

Xiaomi Bluetooth Key Finder

After registering to log in with the joint hunt APP, installed on the smartphone, follow the prompts to bind the finder. When binding, you need to provide your WeChat account, so that the device identification number of the finder is associated with the WeChat account you provide.

Xiaomi Bluetooth Key Finder

When the finder is found by a kind-hearted person after it is lost, he can scan the QR code according to the prompts behind him, and then he can see the device identification code and the WeChat account bound to you, which makes it possible to recover the lost item.

This way we can hang the finder on the key chain and set the name of the bound finder to my key. The joint hunt APP can bind multiple finder devices, so giving each finder a different name is easy to manage.

Xiaomi Bluetooth Key Finder

In the joint search APP, you can see the connection status and battery power of the finder, and you can record the GPS location value when it is disconnected, which is easy to find the missing item. If it is near the disconnect location, and if the anti-loss device shows that the Bluetooth connection is successful, you can press the red icon on the phone's APP, and then the anti-loss device will emit a beep, which is convenient for us to find according to the sound location.

Xiaomi Bluetooth Key Finder

The joint search Bluetooth finder supports two-way search. When Bluetooth is disconnected, the anti-loss device will issue a buzzing alarm, so that the distance between us and the mobile phone will not be too far. Move around a little, find a place where Bluetooth can connect, press the button on the front of the finder, and the phone APP will automatically ring, and we can find the phone's location based on the sound. Whether you fall into a gap in the sofa or be carried away by a thief, you can find your cell phone in time.

Xiaomi Bluetooth Key Finder

The light and small fuselage allows it to be loaded directly into the interlayer of the wallet so that it is not afraid of losing the wallet. It's easy to put it in a close backpack. No wonder you work together to find things and shout out the Slogan. that everything can find.

The volume of the ringtone can be adjusted in the joint search APP. In addition to being used as an anti-loss device, the joint search APP also supports the function of turning on the selfie button, so that the mobile phone can be placed in a fixed position. I took a picture of myself with a joint Bluetooth finder.

Xiaomi Bluetooth Key Finder

Gangzi tested the photo feature and found that although it is called the selfie button, it needs to be taken within the photo function in APP, supporting autofocus and switching between front and rear cameras.

Xiaomi Bluetooth Key Finder: Teardown

Xiaomi Bluetooth Key Finder

Pry open the back cover from the gap in the opposite corner of the rope and you can see the battery. The CR2032 is a commonly used button battery that is easy to replace yourself.

Xiaomi Bluetooth Key Finder

Now that you have opened it, open it thoroughly and pry open the front cover so that you can see the circuit board. There is no cloth on this side of the circuit board, you can see the board number and some test points.

Xiaomi Bluetooth Key Finder

Remove the circuit board and turn to the other side, where we can see the main components such as the printed antenna, the main chip and the clock crystal oscillator / speaker. The main chip is ST17H26, which is a special Bluetooth chip for an anti-loss device that supports ultra-low power consumption of BLE4.0. According to the information found in the chip manual, a CR2032 button battery can support it to work for several years, not to mention APP supports power viewing. So you never have to worry about running out of electricity.


Small size, easy to carry, support two-way search, breakpoint view, remote control photo and other functions, BLE4.0 ultra-low power design, a battery can work for several years, can provide great convenience to our life. It would be even more popular if there were more color options plus waterproofing.

 You may also want to read:
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 GoPro Hero 8, what’s new upgrades and worth buying?
 How to reset the i11 TWS wireless Bluetooth earphones?

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