Product description I have found the brightness mode that I like, and I can choose it again Six groups: Mode 1: First gear (default mode, reset to default mode after installing battery or power failure)；Mode 2: High+Low; Mode 3: High+Strobe; Mode 4: High+Medium+Low; Mode 5: Stepless dimming; Mode 6: High+Strobe+SOS+Slow Flash No data cable charging cable burden USB direct plug-in charging keychain light Fast charging, can be fully charged in about 30 minutes, with a red light when charging and a blue light when fully charged； without the need for a data cable. It is convenient and fast, and can be directly plugged into the USB port of a computer, power bank, or charger； Compact structure, easy to carry around Use an easily accessible 10180 lithium battery For the first use, the insulation sheet needs to be removed. In the future, to prevent accidental contact with the button switch, the lock function can be used. When the device is turned off, long press the switch for 6 seconds to lock it, and long press it again for 6 seconds to unlock it; Convenient rechargeable keychain light Multi functional keychain flashlight Compact and compact rechargeable flashlight About this item The Mini05 mini keychain flashlight product comes with a built-in 10180 lithium battery. MINI05 Keychain flashlight: smart, small, light and compact, with built-in USB male connector, convenient and fast charging, 6 groups of brightness modes suitable for a variety of scenarios; 【Product Features】: 6 groups of brightness modes to choose from: The first group: the default one-speed mode, when it is turned on for the first time or the battery is reinstalled, it is the one-speed mode; the second group: two-speed mode: high brightness + low brightness; the third group: two-speed mode, high brightness +