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CSR USB BT 4.0 Bluetooth Dongle CSR8510 – ElectroDragon
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![Amazon.com: SABRENT USB Bluetooth 4.0 Micro Adapter for PC [v4.0 Class 2 with Low Energy Technology] (BT UB40) : Electronics](https://m.media-amazon.com/images/I/71i0HInvk2L.jpg "Amazon.com: SABRENT USB Bluetooth 4.0 Micro Adapter for PC [v4.0 Class 2 with Low Energy Technology] (BT UB40) : Electronics")
Amazon.com: SABRENT USB Bluetooth 4.0 Micro Adapter for PC [v4.0 Class 2 with Low Energy Technology] (BT UB40) : Electronics
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Amazon.com: COMEXION Bluetooth Headset, Wireless Business Earpiece V4.1 Lightweight Noisy Suppression Bluetooth Earphone with Microphone for Phone/Laptop/Car（Blue+Case） : Cell Phones & Accessories
Stereo Headset Earphone Headphone Mini Bt V4.1 Wireless Handfree With Microphone For Huawei Xiaomi Sony Android All Phone - Earphones & Headphones - AliExpress
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The 3G4G Blog: Different flavours of Bluetooth: 4.0, 4.1, Low Energy, Smart, Smart Ready...
USB Bluetooth 4.0 BLE Low Energy Dongle
