The Pharma-Lock Capsule (EZ Open) is a 250 mL locking jar that uses either finger print recognition technology or a Bluetooth device (cell phone) to lock and unlock. This is a great solution for storing medications, herbs, diamonds, or anything else you might find the need to protect. This Jar securely fits a standard 20 dram CVS pill bottle. The jar is made of metal and the cap is tamper proof authorizing access only to the finger prints registered on the device. The cap can be recharged via USB C connection.