Amazon.com: Customizable Full Color Shining Glasses, Programmable Bluetooth 4.0 RGB Fullcolor Glowing LED Glasses, USB Rechargeable Future Style LED Light Up Glasses : Tools & Home Improvement
Amazon.com: TRENDnet Micro N150 Wireless & Bluetooth 4.0 USB Adapter, Class 1, N150, Up to 150Mbps WiFi N, TBW-108UB : Electronics
Amazon.com: Veepeak OBDCheck BLE+ Bluetooth 4.0 OBD II Scanner for iOS & Android, Car Diagnostic Code Reader Scan Tool for Universal OBDII/EOBD Vehicles : Automotive
Amazon.com: Panda Bluetooth 4.0 USB Nano Adapter - Windows XP/Vista/7/8/8.1/10/11, Mint, Ubuntu, Fedora, openSUSE, Lubuntu, Zorin, BackTrack5 R3, Kali Linux, Raspbrian Wheezy and OpenELEC : Electronics
Amazon.com: USB Bluetooth Dongle, QGOO Bluetooth 4.0 Adapter Bluetooth Receiver for PC Laptop Desktop Keyboard Mouse Headset Speaker Smartphone Tablet Compatible with Windows 11/10/8.1/8/7/XP/Vista/XP : Electronics
Amazon.com: DSD TECH HM-10 Bluetooth 4.0 BLE iBeacon UART Module with 4PIN Base Board for Arduino UNO R3 Mega 2560 Nano : Electronics
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
Amazon.com: Edimax 2-in-1 N150 Wi-Fi & Bluetooth 4.0 Nano USB Adapter, EW-7611ULB (4.0 Nano USB Adapter) : Electronics
Amazon.com: Cable Matters Gold Plated Bluetooth 4.0 Low Energy USB Adapter for Windows 8.1, 8, 7, Vista, XP in White : Electronics
Amazon.com: Sonnet Long-Range USB Bluetooth 4.0 Micro Adapter for macOS 10.12+ and Windows : Electronics
Amazon.com: Avantree DG40S USB Bluetooth Adapter for PC, Bluetooth Dongle for Desktop Laptop Computer, Mouse, Keyboard, Headphones Stereo Music, Skype Calls, Support All Windows 11 10 8.1 8 7 XP Vista : Everything Else
Amazon.com: soundbot SB342-BLK Bluetooth 4.0 USB Adapter with 3Mbps High Data Transfer Rate & 33 Feet Wireless Range : Electronics
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
Amazon.com: OBD2 Bluetooth 4.0 Scanner Car Code Reader for iPhone iOS Android Windows, Auto ODB2 OBDII Adapter Diagnostic Scan Tool for Check Engine Lights : Automotive
Amazon.com: Plugable USB Bluetooth 4.0 Low Energy Micro Adapter (Compatible with Windows 11, 10, 8.x, 7, Classic Bluetooth, Gamepad, and Stereo Headset Compatible) : Electronics
Amazon.com: Bluetooth Audio Transmitter, Wireless Bluetooth 4.0 Transmitter Adapter with 3.5mm Stereo Jack for TV / PC / MP3/ MP4/ CD Player/ iPod, etc : Electronics
Amazon.com: Insignia - Bluetooth 4.0 USB Adapter - Black : Electronics
Amazon.com: StarTech.com Mini USB Bluetooth 4.0 Adapter - 10m (33ft) Class 2 EDR Wireless Dongle - USB Bluetooth Dongle - Bluetooth Smart Ready LE+EDR (USBBT2EDR4) : Everything Else
Amazon.com: RALAN PS4 Bluetooth Dongle Adapter USB 4.0, Wireless Mini Microphone USB Audio Adapter Receiver Compatible with PS4 /PS5 Playstation/Support A2DP HFP HSP : Video Games
Amazon.com: QUICKLYNKS Auto Battery Monitor BM2 Bluetooth 4.0 12V Device Car Battery Tester : Automotive
Amazon.com: TP-Link USB Bluetooth Adapter for PC(UB400), 4.0 Bluetooth Dongle Receiver Support Windows 11/10/8.1/8/7/XP for Desktop, Laptop, Mouse, Keyboard, Printers, Headsets, Speakers, PS4/ Xbox Controllers : Electronics
Amazon.com: Vgate iCar Pro Bluetooth 4.0 (BLE) OBD2 Fault Code Reader OBDII Code Scanner Car Check Engine Light for iOS/Android : Automotive
Amazon.com: INPHIC Bluetooth Mouse, Rechargeable Wireless Mouse Multi-Device (Tri-Mode:BT 5.0/4.0+2.4Ghz) with Silent, 3 DPI Adjustment, Ergonomic Optical Portable Mouse for Laptop Android Windows Mac OS, Grey : Electronics
Amazon.com: DSD TECH HM-11 Bluetooth 4.0 BLE Module with 6 PIN Board Compatible with iOS Devices for DIY : Electronics
Amazon.com: Bluetooth CSR 4.0 USB Dongle Adapter, EKSEN Bluetooth Transmitter of Electronic Signals for Windows 10/8/7/Vista - Plug and Play on Win 8 and Above - White : Everything Else
