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Rs232 Bluetooth Serial Adapter Board Communication Master Slave 2 Modes 5v Mini Usb Bluetooth Serial Port Profile Module - Integrated Circuits - AliExpress
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Serial Bluetooth Adapter | Irxon Bluetooth Rs232 | Bt 1 Rs232 Adapter | Phone Rs232 - Demo Board Accessories - Aliexpress
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The Parani-SD200L is a Class 2 type of Bluetooth Serial Adapter that supports 30 meters of wireless transmits distance by default.
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BC-04 Bluetooth Serial Port Adapter Bluetooth Communication Module RS23 Master-Slave 2 Modes 5v mini usb - Newegg.com
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