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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: 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: in Ear Headphones Ear Buds with Noise Isolation, Bluetooth 4.1 Lightweight Stereo Earbuds with High Fidelity Sound and Dynamic Crystal Clear Sound, Ergonomic Comfort for Gym Running Cycling Workout : Sports
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Amazon.com: Bluetooth Aux Adapter for Car, SONRU Bluetooth 5.0 Receiver for Car,Wireless Audio Adapter Portable Hands-Free Car Kits with RCA AUX 3.5mm for Home/Car Stereo Music Streaming Sound System : Electronics
Amazon.com: Monoprice 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: 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 Bluetooth 4.1 Car Kit for Handsfree Talking and Music Streaming, Wireless Audio Receiver with Dual Port USB Car Charger and Ground Loop Noise Isolator for Car with 3.5mm AUX Input
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: HiLetgo 2pcs MP3 Bluetooth Decoder Board Lossless Car Speaker Audio Amplifier Board Modified Bluetooth 4.1 Circuit Stereo Receiver Module5V : Electronics
Amazon.com: Acxico 1Pcs Bluetooth 4.1 Stereo Sound Module Audio Transmitter Stereo Module Wireless Speaker Headphones : Electronics
Tosuny Fineblue F920 Bluetooth 4.1 Headset Wireless Earpiece Retractable Handsfree Earphone Sports for Smartphone(Black) : Electronics - Amazon.com
Amazon.com: APEKX Clip Bluetooth Audio Adapter for Headphones, Headset, Speaker, Wireless Receiver with MIC for Hands-Free Call and Music : Electronics
Amazon.com: Bluedio HT Turbine Wireless Bluetooth 4.1 Stereo Headphones, Black : Electronics
Amazon.com: JLab JBuds Pro Bluetooth Wireless Signature Earbuds, Titanium 10mm Drivers, 10-Hour Battery Life, Music Controls, Noise Isolation, Bluetooth 4.1 Extra Gel Tips and Cush Fins, Graphite/Blue : Electronics
Amazon.com: Roav Bluetooth Receiver, by Anker, with Bluetooth 4.1, CSR Bluetooth Chip, Noise-Cancellation, Integrated Mic for Hands-Free Calling, AUX-Out Port, and a USB Charging Port : Electronics
Amazon.com: JLab JBuds Pro Bluetooth Wireless Signature Earbuds, Titanium 10mm Drivers, 10-Hour Battery Life, Music Controls, Noise Isolation, Bluetooth 4.1 Extra Gel Tips and Cush Fins, Black : Electronics
Amazon.com: Oumefar Portable Wireless Bluetooth 4.1 Circuit Board Lossless Car Speaker Amplifier Circuit Board for USB Decode Playback etc : Electronics
Amazon.com: JLab Audio Epic Air True Wireless Bluetooth 4.1 Sport Earbuds | with Mic & Charging Case | Noise Isolation | 36 Hours Playtime | IP55 Sweat Resistant | Black : Electronics
Amazon.com: Reiyin WT-01 Bluetooth 4.1 Audio Adapter 3.5mm Wireless Transmitter for TV, MP3 : 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: Vintage Speaker, Heavy Bass Portable Bluetooth 4.1 Speaker with Power Adapter, FM AM Radio Wireless Speaker for Indoor and Outdoor(US Plug) : Electronics
