select indicatorFirst of all, some selfie sticks are compatible with both iOS and Android operating systems, while some can only use one operating system. If you want the selfie stick to be suitable for more 3C devices, you should pay attention to this when choosing.Secondly, the tool used by the selfie stick to control the photo is also an important part of determining the operation experience: some selfie sticks need to be connected to Bluetooth on the mobile phone and the selfie stick respectively, and use the "shutter remote control" to operate. Although it is possible not to press the shutter button on the camera or mobile phone, you need to press the remote control button. Some selfie sticks set the control button at the handle of the stick. After the mobile phone system can be automatically recognized through Bluetooth, you can directly press the button to take pictures without using an additional remote control.In addition, the indicator of "photographing response speed" is also quite critical. It's really tiring if you set up the pose but need a long key response time.Some selfie sticks can adjust the focal length of the mobile phone, most of them cannot adjust the focal length, and the operation of adjusting the focal length may be limited to some brands. [2] skillsFrom the perspective of the "hardware equipment" of the selfie stick, most of the selfie sticks stretch between 24 and 94 cm, and there are also sizes between 65 and 135 cm. The choice of length can be determined according to different needs, but if you want to Portable, the storage length of about 24 cm is more suitable for putting in a travel backpack.The effective range of a Bluetooth connection is generally about 10 meters. If you want a more "wide-angle" effect, you can choose a selfie stick that can stretch to 135 cm. In addition, it is also very important whether the mobile phone clip at the front of the selfie stick supports large-angle rotation. Some selfie sticks are set to rotate at a 360-degree angle, and some can achieve a 720-degree three-dimensional rotation.