Product name: Tik Tok Ring Remote Control Bluetooth-compatible version: V5.3 Bluetooth-compatible chip Input power: DC-5V Battery capacity: 50 mAh Use time: continuous use for about 48h Support applications: support mainstream applications Product size: 31.5*17.9*31mm Function: selfie, like, page up, down, left and right, volume increase and decrease. Mobile phone camera: can take pictures and video. Bluetooth-compatible remote control: In the mobile phone photo or video mode, long press the up or down button on the ring within a distance of 10 meters. Packing list: Bluetooth-compatible remote control x 1, USB Data Cable x 1 Charge anytime, anywhere: 48 hours of continuous use. Provide a convenient charging method without any additional conditions. Compatible with mainstream apps on the market, portable and lightweight, it is the best partner for photography. Smart Wearable Design: Ergonomic ring design gives you a comfortable fit, the perfect gift idea for her or his birthday, Valentine's Day, etc.. While enjoying Tik Tok, you don't need to swipe the video with your finger. You can also scroll through Tik Tok without having to manipulate the page up and down, volume up and down, play and pause, send likes with your hands. (Cannot control music playback app).