M30 is an intelligent handheld mobile POS machine, which can support Bluetooth connection, but it is not a dedicated Bluetooth POS machine. M30 is equipped with a 5.5-inch high-definition touch screen for quick response and precise control. Support Internet, Bluetooth, OTG and other ways to connect, NFC, magnetic stripe card, ic smart card and other settlement methods, suitable for retail, catering, express delivery, taxis and other scenarios and industries. It should be noted that the POS system refers to a point-to-point sales system, which can be hardware or software. Bluetooth is a short-distance wireless communication technology, which can be used to connect mobile phones, computers and other terminal devices with peripheral devices, such as printers and handheld scanners. So M30 is a mobile cashier terminal device, which supports Bluetooth connection, but it is not a dedicated Bluetooth POS machine.