Kanda - USB Bluetooth Adapter for RS232 and serial to Bluetooth network

BT578 V3 RS232 Wireless Male And Female Head Master-Slave

Bluetooth Serial Adapter RS232

13ft 2-Port USB to RS232 Serial Adapter - Serial Cards & Adapters

1 ft USB to Serial DB9 Adapter Cable - Serial Cards & Adapters

IOGEAR - GBC232A - Bluetooth Serial Transmitter

RS-232 to Bluetooth and WiFi Adapters – Serialio.com

Add RS-232 serial communication support to USB-A enabled Data Terminal Equipment (DTE - e.g., desktop or laptop), using this 10ft (3m) straight

10ft (3m) USB to Serial Adapter Cable, COM Retention, Interchangeable Screws/Nuts, USB-A to DB9 RS232, FTDI IC, ESD Protection, Windows/macOS/Linux

Kanda Shop - Category is Bluetooth Wireless

The ICUSB232INT1 USB to RS232 Serial Adapter lets you add an RS232 port to any desktop system that is equipped with an available USB motherboard

24in Internal USB Motherboard Header to Serial RS232 Adapter

Bluetooth Serial Adapter RS232