Intelligent Password Protection Lock: with intelligent password protection lock, just few steps to save money. When you want to change the password: After opening the door, press the key with one hand; Enter a new four digit password with the other hand, such as 8888 and press the key to end confirmation; Release the key to set the new password. Note: If you forget the password, remove the battery, wait for ten seconds, and restart the safe to automatically restore the original password 0000 Dynamic Music Mode: Put the banknotes vertically at the money inlet, and the safe will automatically roll the money into the interior with light and music after sensing it. Open the dynamic music mode, and enjoy the wonderful moment Attractive Design: This children piggy bank is made of ABS material and adopts soft silicone numeric keys. The big size keys can train flexible hands. It is equipped with 3 toy banknotes, colorful and eye catching Multifunctional: This password money saving box supports multifunctional money saving, which can store banknotes and specie. The front of the piggy bank is used to put in banknotes, and there is a specie slot on the top of the safe Suitable for 3-12 Years Old: This kid money saving box is cute, with vivid and interesting patterns. It can cultivate children's good habit of saving from childhood. Suitable for children aged 3-12, giving them a private space and their own private safe