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Yealink BT41 Bluetooth USB Dongle / Yealink Phone Accessories / Yealink / Manufacturers - VoIP Supply
Amazon.com: GOgroove BlueSENSE TRM 3.5mm AUX to Bluetooth Transmitter Wireless Adapter - Connect to Headphone Jack on iPod, MP3 Player, Stereo, Laptop to Pair w/ Wireless Bluetooth Headphones & Speakers : Electronics