Convenient keychain flashlight: A tiny and lightweight 40 lumen keychain flashlight, the perfect low-profile accessory for any keychain or daily carry bag, gives you the light you need at all times. Easy to use: One-button design provides convenient access, one-click low mode, one-click high mode, one click and hold can adjust dimming from 1.5 to 40 lumens . QUICK CHARGING: With built-in Li-Ion battery and built-in micro-USB charging port. The mini flashlight has 0.5 hour quick and fast charging function, the longest working 24 hours. Charging indication is red (in progress) or blue (ending). COMPACT AND ROBUST: The shell is made of lightweight high-strength polycarbonate, only 9 grams at 2.2 inches in weight. long. PACKAGE CONTENTS: Rechargeable keychain flashlight, stainless steel key ring and micro USB cable.