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CSR8510 Bluetooth 4.0 Dongle CSR 4.0 Adapter Mini USB Bluetooth Adapter Transmitter for Windows XP/Vista/7/8/10
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Combination WiFi + Bluetooth 4.0 USB Adapter : ID 4827 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
IOGEAR GBU521 Bluetooth 4.0 Bluetooth Adapter for Desktop Computer USB 3 Mbits 2.48 GHz ISM 30 ft Indoor Range External - Office Depot
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ORICO Wireless USB Bluetooth-Compatible 4.0 Adapter USB Dongle Transmitter Receiver for PC Windows Speaker Wireless Mouse - AliExpress
IOGEAR GBU521 Bluetooth 4.0 Bluetooth Adapter for Desktop Computer - GBU521 - Wireless Adapters - CDW.com
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Premiertek Dual Mode Bluetooth V4.0 USB Adapter with Low Energy Technology for Notebook Desktop Raspberry Pi (BT-400_V2) (bluetoothdongle-CSR4.0 1
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Mini adapter Bluetooth 4.0 USB computer portable dongle connects PC or notebook Caixas de som earphone knob control - AliExpress
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Bluetooth 4.0 USB Module (v2.1 Back-Compatible) : ID 1327 : $11.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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Mini USB Bluetooth 4.0 Dongle - 50m - Bluetooth & Telecom Adapters | Networking IO Products | StarTech.com
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TP-Link USB Bluetooth Adapter for PC (UB400), Bluetooth Dongle Supports Windows PC for Desktop, Laptop, Mouse, Keyboard, Printers, Headsets, Speakers, PS4/ Xbox Controllers - Bulk Packaging - 1 Pack - Walmart.com
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USB Mini Bluetooth 4.0 CSR4.0 Adapter Dongle Bluetooth Receiver Wireless Transfer Adapter For PC Laptop Bluetooth Headphones Headset Speakers Keyboard Mouse Printer Windows 10/8.1/8/7 - Walmart.com
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