AirTurn | USB Bluetooth V4.0 Adapter
LM1010-0970, Long Range Bluetooth® v4.0 Dual Mode Adapter
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 - Newegg.com
LM1010-0972 - Lm Technologies - BLUETOOTH ADAPTER W/ANTENNA, V4.0, 3MBPS
Kinivo BTD-400 Bluetooth 4.0 Low Energy USB Adapter - Works With Windo
Csr8510 Bluetooth 4.0 Dongle Csr 4.0 Adapter Mini Usb Bluetooth Adapter Transmitter For Windows Xp/vista/7/8/10 - Bluetooth Adapters - AliExpress
AirTurn | USB Bluetooth V4.0 Adapter
Kinivo BTD-400 Bluetooth 4.0 Low Energy USB Adapter - Works With Windo
Serial Bluetooth 4.0 BLE Module - iBeacon
Importer520(TM) Mini Wireless Bluetooth V4.0 Headset Headphone with dual pairing For iPhone 5 4S iPod - Black - Walmart.com
1.0-1_large_20230117174013u.jpg "UB400 | Bluetooth 4.0 Nano USB Adapter | TP-Link")
UB400 | Bluetooth 4.0 Nano USB Adapter | TP-Link
Bluetooth 4.0 USB Module (v2.1 Back-Compatible) : ID 1327 : $11.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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
KRC-86B CSR8630 bluetooth 4.0 Stereo Audio Receiver Module Board A2DP AVRCP
![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/71qKLqgHkqL._AC_UF894,1000_QL80_.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
USB Bluetooth 4.0 BLE Low Energy Dongle
Amazon.com: GMYLE Bluetooth 4.0 Broadcom Chip Dongle Adapter, Ultra-Mini USB Transmitter Receiver with LED, Support Windows 10, 8, 7, Plug and Play : Electronics
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
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 Adapter for Desktop, Laptop, Mouse, Keyboard, Printer, Headset | eBay
Wavlink Nano Wireless Bluetooth CSR 4.0 Dongle Adapter Bluetooth - Newegg.com
100% Original Fineblue F910 Wireless Bluetooth V4.0 Headset In Ear Vibrating Alert Wear Clip Hands Free Earphone For Smartphones|Bluetooth Earphones & Headphones| - AliExpress
USB Bluetooth 4.0 Adapter - Power Music Hardware Store
![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/81065JvKh4L._AC_UF350,350_QL80_.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
Hands Free Wireless Stereo V4.0 Bluetooth Business Headphones Phone Bluetooth Headset Car Driver Handsfree Earphone with Mic - China Bluetooth Headset and Headset price
Bluno Bee - Turn Arduino to Bluetooth 4.0 (BLE) Board - DFRobot
![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._AC_UF894,1000_QL80_.jpg "Amazon.com: SABRENT USB Bluetooth 4.0 Micro Adapter for PC [v4.0 Class 2 with Low Energy Technology] (BT UB40) : Electronics")