Amazon.com: USB Bluetooth Adapter, 4.0 Dongle Ideapro Micro Bluetooth Transmitter, Transfer for Laptop Windows 10 Raspberry Pi, Linux, Stereo Headset, Wireless Keyboard Headphone : Electronics
USB Bluetooth 4.0 Adapter for Desktop, Laptop, Mouse, Keyboard, Printer, Headset | eBay
Orcaa Bluetooth CSR 4.0 Dongle Premium Plug and Play for PC Gaming Office Computers
DOSS Touch Wireless Bluetooth V4.0 Portable Speaker with HD Sound and Bass (Black) - Walmart.com
Mini Usb Bluetooth V4.0 Adapter Dual Mode Wireless Dongle Csr 4.0 Bluetooth Adapter For Windows 7,8,10 Pc Computer Laptop - Bluetooth Adapters - AliExpress
USB Bluetooth Adapter PC 4.0, Wireless Bluetooth Receiver - Maxesla
Csr8510 Bluetooth 4.0 Dongle Csr 4.0 Adapter Mini Usb Bluetooth Adapter Transmitter For Windows Xp/vista/7/8/10 - Bluetooth Adapters - AliExpress
UB500 Bluetooth 5.0 Nano USB Adapter | Dell USA
AirTurn | USB Bluetooth V4.0 Adapter
Bluetooth 4.0 USB Module (v2.1 Back-Compatible) : ID 1327 : $11.95 : Adafruit Industries, Unique & fun DIY electronics and kits
AirTurn | USB Bluetooth V4.0 Adapter
Amazon.com: SABRENT USB Bluetooth 4.0 Micro Adapter for PC [v4.0 Class 2 with Low Energy Technology] (BT UB40) : Electronics
Mini USB Bluetooth 4.0 Dongle - 50m - Bluetooth & Telecom Adapters | StarTech.com
DOSS Touch Wireless Bluetooth V4.0 Portable Speaker with HD Sound and Bass (Black) - Walmart.com
CBT40NANO Bluetooth 4.0 Class 1 USB Adapter - Conceptronic
CSR USB BT 4.0 Bluetooth Dongle CSR8510 – ElectroDragon
CSR8510 Bluetooth 4.0 USB Module [CSR8510 Bluetooth 4.0] - US $5.00 : HAOYU Electronics : Make Engineers Job Easier
High Performance Bluetooth 4.0 Adapter, Wireless Bluetooth CSR 4.0 Dongle Adapter Compatible with Windows 10, 8.1 / 8, 7, Vista, XP, 32/64 Bit and Classic Bluetooth, Stereo Headset Compatible Bluetooth Adapters - Newegg.com
USB Bluetooth 4.0 Adapter - Power Music Hardware Store
SHELLTON Viecar 4.0 Bluetooth v4.0 OBD2 Car Diagnostics Scanner For Apple/Android carista Car Scan Tool - Walmart.com
Bluetooth Car Kit Speaker Bluetooth v4.0 Wireless Adapter Handsfree Bluetooth Audio Receiver Transmitter » Gadget mou
Mini Usb Bluetooth V4.0 Adapter Dual Mode Wireless Dongle Csr 4.0 Bluetooth Adapter For Windows 7,8,10 Pc Computer Laptop - Bluetooth Adapters - AliExpress
USB Bluetooth 4.0 Micro Adapter for PC [v4.0 Class 2 with Low Energy T - Sabrent