The KH-RFID-4216-BQ is an RFID (Radio Frequency Identification) tag with RF Chips 42x16mm RoHS manufactured by Kinghelm. The tags are designed to identify and track products or objects, making them useful for inventory management, asset tracking, and access control. These tags are compliant with the Restriction of Hazardous Substances (RoHS) Directive, designed for use in electronic and electrical equipment. The 42x16mm RF Chips are embedded into the tag, allowing it to send and store information and uniquely identify the objects it is attached to. The tags are made of durable plastic and can be read from distances of up to 12 inches. The tag is waterproof, dustproof, and resistant to extreme temperatures, making it suitable for use in a range of environments.