![Amazon.com: Cable Matters USB Bluetooth Adapter (USB to Bluetooth 4.0 Adapter) for Windows 10, 8.1, 8, 7, Vista, XP, Raspberry Pi in Black : Electronics Amazon.com: Cable Matters USB Bluetooth Adapter (USB to Bluetooth 4.0 Adapter) for Windows 10, 8.1, 8, 7, Vista, XP, Raspberry Pi in Black : Electronics](https://m.media-amazon.com/images/I/71fidw78mIL.jpg)
Amazon.com: Cable Matters USB Bluetooth Adapter (USB to Bluetooth 4.0 Adapter) for Windows 10, 8.1, 8, 7, Vista, XP, Raspberry Pi in Black : Electronics
![Amazon.com: Bysimilai Bluetooth 5.0 Transmitter for TV/PC to Wireless Headphone, Digital Optical Bluetooth Audio Adapter aptX Low Latency, HD Sound (Optical, 3.5mm AUX, Coaxial, TF Card) -Type C Power Supply : Electronics Amazon.com: Bysimilai Bluetooth 5.0 Transmitter for TV/PC to Wireless Headphone, Digital Optical Bluetooth Audio Adapter aptX Low Latency, HD Sound (Optical, 3.5mm AUX, Coaxial, TF Card) -Type C Power Supply : Electronics](https://m.media-amazon.com/images/I/518Na9UmUAL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Bysimilai Bluetooth 5.0 Transmitter for TV/PC to Wireless Headphone, Digital Optical Bluetooth Audio Adapter aptX Low Latency, HD Sound (Optical, 3.5mm AUX, Coaxial, TF Card) -Type C Power Supply : Electronics
![Amazon.com: DX-CP24 RS485 to Bluetooth Serial Adapter Industrial Wireless Bluetooth Communication Module to RS485 Converter, Change 485 Wired Device to Wireless, Supports Modbus Protocol, DC 5-36V (for PC) : Electronics Amazon.com: DX-CP24 RS485 to Bluetooth Serial Adapter Industrial Wireless Bluetooth Communication Module to RS485 Converter, Change 485 Wired Device to Wireless, Supports Modbus Protocol, DC 5-36V (for PC) : Electronics](https://m.media-amazon.com/images/I/71OmK4gMFlL._AC_UF894,1000_QL80_.jpg)
Amazon.com: DX-CP24 RS485 to Bluetooth Serial Adapter Industrial Wireless Bluetooth Communication Module to RS485 Converter, Change 485 Wired Device to Wireless, Supports Modbus Protocol, DC 5-36V (for PC) : Electronics
![Amazon.com: DSD TECH SH-B20 RS485 to Bluetooth SPP Adapter Support Android and Windows OS : Electronics Amazon.com: DSD TECH SH-B20 RS485 to Bluetooth SPP Adapter Support Android and Windows OS : Electronics](https://m.media-amazon.com/images/I/61-56oe7BrL._AC_UF894,1000_QL80_.jpg)
Amazon.com: DSD TECH SH-B20 RS485 to Bluetooth SPP Adapter Support Android and Windows OS : Electronics
![Amazon.com: DX-CP12 Bluetooth to RS232 Serial Adapter Converter Built in BLE 5.1 Bluetooth Module Compatible with Android/iOS (CP12-Slave) : Electronics Amazon.com: DX-CP12 Bluetooth to RS232 Serial Adapter Converter Built in BLE 5.1 Bluetooth Module Compatible with Android/iOS (CP12-Slave) : Electronics](https://m.media-amazon.com/images/I/71+7wTDfATL._AC_UF894,1000_QL80_.jpg)
Amazon.com: DX-CP12 Bluetooth to RS232 Serial Adapter Converter Built in BLE 5.1 Bluetooth Module Compatible with Android/iOS (CP12-Slave) : Electronics
![Amazon.com: Cable Matters USB Bluetooth Adapter (USB to Bluetooth 4.0 Adapter) for Windows 10, 8.1, 8, 7, Vista, XP, Raspberry Pi in Black : Electronics Amazon.com: Cable Matters USB Bluetooth Adapter (USB to Bluetooth 4.0 Adapter) for Windows 10, 8.1, 8, 7, Vista, XP, Raspberry Pi in Black : Electronics](https://m.media-amazon.com/images/I/71+1s0pmJgL._AC_UF350,350_QL80_.jpg)
Amazon.com: Cable Matters USB Bluetooth Adapter (USB to Bluetooth 4.0 Adapter) for Windows 10, 8.1, 8, 7, Vista, XP, Raspberry Pi in Black : Electronics
![Amazon.com: Comimark 1Pcs RS232 Bluetooth Serial Adapter Communication Master-Slave Module 5v Mini USB : Electronics Amazon.com: Comimark 1Pcs RS232 Bluetooth Serial Adapter Communication Master-Slave Module 5v Mini USB : Electronics](https://m.media-amazon.com/images/I/6108Zh5cVmL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Comimark 1Pcs RS232 Bluetooth Serial Adapter Communication Master-Slave Module 5v Mini USB : Electronics
![Amazon.com: SUNGUY USB C to Micro USB OTG Cable, [2-Pack,1FT] Short 90-Degree Angled Type-C to USB Micro Android Charger Cable Compatible with MacBook Pro/Air, Galaxy S21/S20/S10, Pixel 5/4/3, Kindle : Electronics Amazon.com: SUNGUY USB C to Micro USB OTG Cable, [2-Pack,1FT] Short 90-Degree Angled Type-C to USB Micro Android Charger Cable Compatible with MacBook Pro/Air, Galaxy S21/S20/S10, Pixel 5/4/3, Kindle : Electronics](https://m.media-amazon.com/images/I/71mLqGJsoQL.jpg)
Amazon.com: SUNGUY USB C to Micro USB OTG Cable, [2-Pack,1FT] Short 90-Degree Angled Type-C to USB Micro Android Charger Cable Compatible with MacBook Pro/Air, Galaxy S21/S20/S10, Pixel 5/4/3, Kindle : Electronics
![Amazon.com: DX-BT24W-A Bluetooth Module with External Antenna for Arduino BLE 5.1 Wireless Bluetooth Transceiver Module Scanning QR Code Connection Compatible with Android/iOS (Master+Slave) : Electronics Amazon.com: DX-BT24W-A Bluetooth Module with External Antenna for Arduino BLE 5.1 Wireless Bluetooth Transceiver Module Scanning QR Code Connection Compatible with Android/iOS (Master+Slave) : Electronics](https://m.media-amazon.com/images/I/71XmCE1x4EL._AC_UF894,1000_QL80_.jpg)
Amazon.com: DX-BT24W-A Bluetooth Module with External Antenna for Arduino BLE 5.1 Wireless Bluetooth Transceiver Module Scanning QR Code Connection Compatible with Android/iOS (Master+Slave) : Electronics
![Amazon.com: Comimark 1Pcs RS232 Bluetooth Serial Adapter Communication Master-Slave Module 5v Mini USB : Electronics Amazon.com: Comimark 1Pcs RS232 Bluetooth Serial Adapter Communication Master-Slave Module 5v Mini USB : Electronics](https://m.media-amazon.com/images/I/71fax3niO5L._AC_UF894,1000_QL80_.jpg)
Amazon.com: Comimark 1Pcs RS232 Bluetooth Serial Adapter Communication Master-Slave Module 5v Mini USB : Electronics
![Amazon.com: Comimark 1Pcs RS232 Bluetooth Serial Adapter Communication Master-Slave Module 5v Mini USB : Electronics Amazon.com: Comimark 1Pcs RS232 Bluetooth Serial Adapter Communication Master-Slave Module 5v Mini USB : Electronics](https://m.media-amazon.com/images/I/71QIbXI-ChL._AC_UF350,350_QL80_.jpg)
Amazon.com: Comimark 1Pcs RS232 Bluetooth Serial Adapter Communication Master-Slave Module 5v Mini USB : Electronics
![Amazon.com: AEDIKO 4pcs HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module : Electronics Amazon.com: AEDIKO 4pcs HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module : Electronics](https://m.media-amazon.com/images/I/71EqE8EHMLL.jpg)
Amazon.com: AEDIKO 4pcs HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module : Electronics
![Amazon.com: DSD TECH SH-B35 RS485 RS232 to Bluetooth 2.0 Adapter Support Android and Windows : Electronics Amazon.com: DSD TECH SH-B35 RS485 RS232 to Bluetooth 2.0 Adapter Support Android and Windows : Electronics](https://m.media-amazon.com/images/I/616LOiemEtL._AC_UF894,1000_QL80_.jpg)
Amazon.com: DSD TECH SH-B35 RS485 RS232 to Bluetooth 2.0 Adapter Support Android and Windows : Electronics
![Amazon.com: A Pair of DX-CP13 Bluetooth 5.1 to Serial RS485/RS232/CONSOLE/ USB Converter Adapter Built-in BLE 5.1 Bluetooth Module 4-in-1 Multifunctional Bluetooth Serial Port Converter Adapter : Electronics Amazon.com: A Pair of DX-CP13 Bluetooth 5.1 to Serial RS485/RS232/CONSOLE/ USB Converter Adapter Built-in BLE 5.1 Bluetooth Module 4-in-1 Multifunctional Bluetooth Serial Port Converter Adapter : Electronics](https://m.media-amazon.com/images/I/71jTk+HUwdL._AC_UF350,350_QL80_.jpg)
Amazon.com: A Pair of DX-CP13 Bluetooth 5.1 to Serial RS485/RS232/CONSOLE/ USB Converter Adapter Built-in BLE 5.1 Bluetooth Module 4-in-1 Multifunctional Bluetooth Serial Port Converter Adapter : Electronics
![Amazon.com: HiLetgo 2pcs HC-06 RS232 4 Pin Wireless Bluetooth Serial RF Transceiver Module Bi-Directional Serial Channel Slave Mode for Arduino : Electronics Amazon.com: HiLetgo 2pcs HC-06 RS232 4 Pin Wireless Bluetooth Serial RF Transceiver Module Bi-Directional Serial Channel Slave Mode for Arduino : Electronics](https://m.media-amazon.com/images/I/61UVUvAGyuL._AC_UF894,1000_QL80_.jpg)
Amazon.com: HiLetgo 2pcs HC-06 RS232 4 Pin Wireless Bluetooth Serial RF Transceiver Module Bi-Directional Serial Channel Slave Mode for Arduino : Electronics
![Amazon.com: Cable Matters USB Bluetooth Adapter (USB to Bluetooth 4.0 Adapter) for Windows 10, 8.1, 8, 7, Vista, XP, Raspberry Pi in Black : Electronics Amazon.com: Cable Matters USB Bluetooth Adapter (USB to Bluetooth 4.0 Adapter) for Windows 10, 8.1, 8, 7, Vista, XP, Raspberry Pi in Black : Electronics](https://m.media-amazon.com/images/I/413RAxH8fML._AC_.jpg)
Amazon.com: Cable Matters USB Bluetooth Adapter (USB to Bluetooth 4.0 Adapter) for Windows 10, 8.1, 8, 7, Vista, XP, Raspberry Pi in Black : Electronics
![Amazon.com: HiLetgo 2pcs HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino : Electronics Amazon.com: HiLetgo 2pcs HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino : Electronics](https://m.media-amazon.com/images/I/61gcEbXHeBL._AC_UF894,1000_QL80_.jpg)