Amazon.com: Sennheiser HD1 In-Ear Wireless Headphones, Bluetooth 4.1 with Qualcomm Apt-X and AAC, NFC one touch pairing, 10 hour battery life, 1.5 hour fast USB charging, multi-connection to 2 devices : Electronics
Amazon.com: 20S-01D SENA DUAL Bluetooth 4.1 Communication DUAL System for Motorcycles, 20S-01D : Electronics
Amazon.com: HiLetgo 3W Car Bluetooth 4.1 MP3 WAV Decoding Board Speaker Amplifier Audio Receiver Module Support USB/TF/U-Disk/IR with Remote Control : Electronics
Amazon.com: TWS Single Bluetooth 4.1 Headset with Rotatable Ear Hook, Business Wireless Earphone Headphone, Hands Free Call Earpiece, Long Standby, HiFi Deep Bass : Electronics
Amazon.com: Monoprice 136375 Wall Mount Music Amplifier, 40 Watts with Touch Screen Bluetooth 4.1, Line Level Aux, FM Radio, and Wireless IR Remote - Commercial Audio : Electronics
Amazon.com: Wireless Over Ear Bluetooth Headphones,Bluetooth 4.1 Headset,Over Ear Stereo Headphones,MP3 Music Player Support Memory Card,with Charging Cable(White) : Electronics
Amazon.com: Bluetooth MP3 Decoding Module, Bluetooth 4.1 Lossless Decoding Module Receiver Circuit Board with Remote Control : Toys & Games
Amazon.com: Acxico 1Pcs Bluetooth 4.1 Stereo Sound Module Audio Transmitter Stereo Module Wireless Speaker Headphones : Electronics
Amazon.com: Bluetooth Headset,Wireless Earpiece Hands Free Stereo Headphones Business Earphones in-Ear Earbuds with Noise Canceling Mic for Business/Office/Driving Call, Work for iPhone/Samsung/Android : Electronics
Amazon.com : Bluetooth 2D Wireless Barcode Scanner,Symcode 3-in-1 USB Wired & 2.4G Wireless & Bluetooth 4.1 1D QR Image Bar Code Reader Scanner : Office Products
Amazon.com: Bluedio HT Turbine Wireless Bluetooth 4.1 Stereo Headphones, White : Electronics
Amazon.com: Sena 20S-01 Motorcycle Bluetooth 4.1 Communication System with HD Audio and Advanced Noise Control (Single) : Electronics
Amazon.com: Bluetooth 4.1 Circuit Board, 4.1 Audio Amp Board Headphone Bluetooth Mp3 Decoder Board Decoding Player Module : Electronics
Amazon.com: 1 pcs lot DA14580 smallest bluetooth module Bluetooth 4.0 4.1 low energy bluetooth module : Electronics
Amazon.com: BESIGN SH03 Sports Bluetooth 4.1 Headphones, Wireless Stereo Earphones for Running with Mic for Wireless Music Streaming and Handsfree Calling, Up to 25 Hours Music time : Electronics
Amazon.com: Scosche BTTWT-SP FlyTunes Universal Portable Bluetooth 4.1 Wireless Audio Transmitter for Use with AirPods, Earbuds/Headphones, TV's and More - White : Electronics
Amazon.com: Besign BK01 Bluetooth 4.1 Car Kit Handsfree Wireless Talking & Music Streaming Receiver with Dual Port USB Car Charger and Ground Loop Noise Isolator for Car with 3.5mm AUX Input Port :
Amazon.com: Stereo Hands-Free Call Bluetooth Recording Module, VHM-314 MP3 Bluetooth 4.1 Audio Receiver Decoder Board DIY Lossless Car Speaker Amplifier Board : Electronics
Amazon.com: Bluedio HT Turbine Wireless Bluetooth 4.1 Stereo Headphones, Black : Electronics
Amazon.com: Bluetooth 4.1 Receiver, HiFi Wireless Music Reciver Bluetooth Clip-on Receiver with Headset Earphones Audio Adapter Receiver for TV/Home Sound System(White) : Electronics
Amazon.com: JLab Fit 2.0 Bluetooth Enabled Wireless Sports Earbuds | Bluetooth 4.1 | 10mm Titanium Drivers | 6 Hour Battery Life | IP55 Sweatproof | Flexible Memory Wire | Blue : Electronics
Amazon.com: TP-Link NFC-Enabled Bluetooth 4.1 Receiver, Wireless Audio Adapter Streaming Music from Echo Smart Phone Tablet PC to Home Car Stereo Sound System (HA100) : Electronics
Amazon.com: MP5 Car Player AMprime 1 Din Car Radio 4.1 Inch Touch Screen Music Player Car Stereo Bluetooth Dual USB AUX SD + Backup Camera : Electronics
Amazon.com: Sena 10S-01 Bluetooth 4.1 Communication Single System for Motorcycles, 10S-01 : Electronics
Amazon.com: NORTH Wireless Bluetooth 4.1 Earbuds Headphones Sport Secure in-Ear for iPhone 6s Plus, Samsung Galaxy Series and More (Black) : Electronics
