TOP > Various Menus of the Application > The [Settings] Menu > [Bluetooth] Menu [Bluetooth] Menu Set the Bluetooth connection. The setting items are as follows: [Enable]Enable or disable the functions for Bluetooth.[Name]Set the device name for the printer.You can enter 1 to 53 characters. Alphabets (capital and small letters), numbers and symbols can be used.[PIN Code]Set the PIN code.You can enter 4 to 16 characters for the PIN code. Alphabets (capital and small letters), numbers and symbols can be used.[BD Address]Shows the BD address of the printer. (You cannot change this address.)[Firm Version]Shows the firmware version of the Bluetooth. (You cannot change this value.)[iOS Reconnect]Disable the iOS reconnect function or set it to the Manual mode.[Authentication]Set the authentication level.[ISI]Set the ISI communication parameter.The setting range is 0, or from 18 to 4096.Set to a value that is more than the ISW communication parameter setting value.[ISW]Set the ISW communication parameter.The setting range is 0, or from 18 to 4096.The setting range varies depending on the ISI communication parameter setting value.Set to a value that is less than the ISI communication parameter setting value.[PSI]Set the PSI communication parameter.The setting range is from 18 to 4096.Set to a value that is more than the PSW communication parameter setting value.[PSW]Set the PSW communication parameter.The setting range is from 18 to 4096.The setting range varies depending on the PSI communication parameter setting value.Set to a value that is less than the PSI communication parameter setting value.[CRC Mode]Enable or disable the CRC check function.[Flow Control]Set the communication protocol.