escpos-bluetooth v3.0.0-alpha.2

Bluetooth(address, channel)

const escpos = require('escpos');
escpos.Bluetooth = require('escpos-bluetooth');

const address = '01:23:45:67:89:AB';
const channel = 1;
const bluetoothDevice = new escpos.Bluetooth(address, channel);

You can scan for printers using the escpos.Bluetooth.findPrinters() method. Check out the examples (bt_promise and bt_find_printer) for more information.