Ruby Devices Ruby Calculator Ultimate Edition - Connecting to an iOS Smart Phone

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5. How to Connect to an iOS Smart Phone
To connect a Ruby Calculator to an iOS Smart Phone perform the following steps.

Download the app by Ruby Devices entitled “RXO Chat” from the Apple App
Store.

Switch on the Ruby Calculator and enter “Chat Mode”.

Switch on Bluetooth on the Apple device.

Start up the app and click on “Connect Now” as shown in the screenshot
below

Begin to chat.