I am in Australia and my Genos has built in wifi. I have copied the statement below from the Genos Owners Manual page 112. There is more information in chapter 13 of the Genos Reference Manual. Go through the steps in the Reference Manual which should indicate if you have a built in WiFi function.
You can make connections by one of the following methods.
• Connecting via the wireless LAN function (*1).
• Connect to the [USB TO HOST] terminal via a Wireless MIDI Adaptor: UD-BT01 (*2)
• Connect to the MIDI terminals via a Wireless MIDI Adaptor: MD-BT01 (*2)
*1 The wireless LAN function may not be included depending on your area.
*2 These accessories are sold separately, but may not be available depending on your area.
For details on connections, refer to the “iPhone/iPad Connection Manual” and the Reference Manual on the website. For information about the compatible smart devices and application tools, access the following page:
https://www.yamaha.com/kbdapps/Murray