【Function】Crank charger can provide about 3 minutes of charging, which may support 5-10 minutes of talk time and 3-8 hours of standby time, depending on the mobile phone's condition. 【Red LED Light and Stylish Design】The red LED light serves as both an indicator and an emergency light. The translucent frosted housing offers an elegant and modern look, making it a great gift for friends or for personal use. 【Reliable Tool】A simple hand crank converts mechanical energy into electrical energy, suitable for charging various mobile phones and digital devices. It is simple, convenient, and practical. 【Standard USB Interface】The emergency hand crank charger features a standard USB port with 5V output, compatible with most USB-powered devices and mobile phones. It can also be used as a hand-powered device during charging. 【Emergency Charger】A portable manual charger ideal for outdoor activities, serving as a reliable backup power source to charge your mobile phone or other digital devices anytime.