Smart : The design makes it more convenient to wear it on your finger, BT 5.3 stable connection, fluent and stable operation, which is prepared to use, easy to match, rechargeable, the single charging time is 72 hours, without frequent charging. Extensive Use: The left, right, up and down buttons of this product correspond to the up, down, left and right sliding of the phone screen, different operations can be realized on the phone, the operation depends on your imagination and far exceeds the functions we introduced. Multifunctional: Through BT connection, you can control the up and down page turning, left and right page turning, volume increase and decrease, pause playing, like, take continuous photos, record videos and other operations of your phone or tablet, freeing your hands. Page Turner: Perfectly controls the page, you can perform complex operations such as the previous or video. Note: if you have an for iOS system, you need to turn on the auxiliary touch function of the system. Phone Camera Control: You can remotely control your phone to take photos and record videos by pressing the up or down button on the within a distance of 10m. Uses: taking photos, recording videos, watching videos, reading novels, etc.