the transmission of user data between devices without the use of wires.
devices can use wireless connectivity to communicate with each other. there are many types of wireless communication: 🔸wi-fi 🔸bluetooth 🔸3g and 4g 🔸infra-red (ir) 🔸near-field communication (nfc)
The National Association of Purchasing Management-Chicago 's factory index increased to 58.9 from 55.9 in July .