Charging: Charging via Type-c requires low power consumption. Please use the DC5V Type-c charging cable to charge. The indicator light is always on red during charging, and goes out when fully . Convenient shutter control for mobile devices: The remote control can be connected up to 30 feet (10 meters) to take pictures even away from your phone. This is great for taking selfies with a tripod. Widely Compatible: Compatible for iOS and Android systems. Reminder: The Compatible for iOS system needs to enable the assistive touch function of the Compatible for to use this remote control to scroll up and down on for . Multi-functional wireless remote control: It can be used to take photos/videos remotely to get a larger field of view. You can use it to turn pages, such as watching videos, use it instead of swiping up, down, left and right and for Dblclick, you can also use it to Read for ebooks. In short, anywhere you can connect to Bluetooth-compatible. Mini Design: small in size and light in weight, can be put into your pocket. Equipped with a wrist strap, more convenient to carry. Product Name: Selfie Controller Bluetooth-compatible version: 5.0 Battery: Lithium battery Size: 6.5x4.5x1.5CM Connection distance: 1-15 meters (in an open environment) Function: short video page up, page down, left page, right page, like, photo, video (no voice function for now), e-book page turning, swiping the circle of friends, drama Colour: black Material: plastic Package Contents: 5 x Bluetooth Remote Control 5 x USB Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.