Item Type: Locker Electronic Password Lock Material: Zinc Alloy Battery: 1PC CR2032 3V (not included) Locking Mechanism: Electronic Lock 1、9 Touch Button: The electronic code lock adopts 9 touch button design, which looks more high grade and more convenient to use. 2、High Security: The password can be any combination of 4‑15 digits, and the number of keys can reach tens of millions, which is more secure. 3、High Performance: You can set and change passwords, the original password will be automatically saved when the power is turned off. 4、External Battery Compartment: The external battery compartment is easy to disassemble, you can replace the battery (not included) more conveniently and quickly. 5、Smart to Use: Ultra low power consumption, with automatic notification for lack of power. The virtual password input function can effectively prevent others from peeping.