$5.49
Arduino Wireless Bluetooth Transceiver Module Slave 4Pin Serial + DuPont Cable
$10.68
HC-06 Bluetooth to UART converter COM serial communication slave mode
Too low to display
Hohner HC06 Full Sized Classical Nylon String Guitar
$9.49
Kootek® BT2S Bluetooth to Serial Slave RS232 TTL UART Module Board for Arduino