This military-grade hardware is designed to withstand harsh environmental conditions. Coupled with an intelligent core, thanks to algoPIN technology, you can be assured that your assets are secure anytime and anywhere. The lock automatically engages as soon as the shackle is secured. Access to the padlock is disabled after several incorrect access attempts to ensure your valuables are protected. An LED warning reminds the user to close the shackle. The intuitive LED warning prompts you to recharge the batteries when they are low. When the batteries are depleted, the lock can be easily reactivated using a USB-C cable connected to a power bank. Simply charge the lock with a USB-C cable when the battery level is low. It offers a usage duration of 9 months with less than an hour of charging time. Adjust the volume to your preference. Choose between levels 0 (silent) to 5 (loudest).