Type-C Standard Charging: The indicator light near the charging port is red during charging and automatically shuts off when fully charged. LED Light Switch: Press once for flashlight, twice for flashing light, and thrice to turn it off. Low Battery Reminder: When the battery is low and the alarm or light is activated, it will automatically emit beeping sounds to remind you to recharge. The keychain attachment provided with Gorfex can easily be attached to wallets, backpacks, and belts, suitable for various scenarios, such as walking accessories for women, girls. If you encounter any issues while using the keychain alarm, please feel free to contact us and enjoy a 18-month warranty.