Self-timer sticks sell for tens to hundreds of yuan. How do we choose them? First of all, some self-timer poles can be compatible with iOS and Android operating systems, while some products can only support one operating system, you need to pay attention to this when buying. At the same time, there are self-timer sticks that can adjust the focus of mobile phone cameras, but they are limited to some brands of mobile phones. Secondly, it should be noted that some low-cost self-recording rods do not have built-in Bluetooth, and need to be operated with a separate "shutter remote controller". Although the shutter key on the camera or mobile phone can not be pressed, the key of the remote controller needs to be pressed. Mainstream self-recording rods usually set the photo control button at the handle of the rod. After connecting the mobile phone through Bluetooth, they can take photos directly by pressing the button without using the remote control. There is also a simple self-timer rod, which does not need batteries and connects to the mobile phone through the headphone port.
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