There are several ways for wireless communication such as NRF, ZigBee, Wi-Fi and Bluetooth.

Bluetooth protocol; an affordable communication method in PAN network, with maximum data rate of 1Mb/S, working in nominal range of 100 meters using 2.4 G frequency is a common way of wireless communicating.

HC05 module is a Bluetooth module using serial communication, mostly used in electronics projects.

You can see the HC05 module specifications in the table below: