1. Charge anytime, anywhere: 48 hours of continuous use. Provide a convenient charging method without any additional conditions. 2. Compatible with mainstream apps on the market, portable and lightweight, it is the best partner for photography. 3. Smart Wearable Design: Ergonomic ring design gives you a comfortable fit, the perfect gift idea for her or his birthday, Valentine's Day, etc.. Description: Product name: TIK Tok Ring Remote Control Bluetooth-compatible version: V5.3 Bluetooth-compatible chip Input power: .DC-5V Product color: black/white/pink Battery capacity: 50 mAh Use time: continuous use for about 48h Support applications: support mainstream applications Product size: 37.3x18x32.9mm Packing list: Bluetooth-compatible Self Timer x 1 USB Data Cable x 1