Sennheiser BTD 500 USB - - USB Bluetooth Transmitter Never used New in box | eBay
Poyatu Aptx Hd599 Bluetooth Adapter For Sennheiser Hd599 Hd579 Hd569 Wireless Adapter Receiver Bluetooth Cable Cord - Wireless Adapter - AliExpress
Sennheiser BTD 500 USB Dongle Wireless Bluetooth Adapter (BTD500 USB)
Long Range USB Bluetooth 5.0 Adapter for PC USB Bluetooth Adapter Wireless Audio Dongle for Headphones Speakers 328FT / 100M5.0 Bluetooth Transmitter Receiver for Windows 10/8 / 8.1/7 - Newegg.com
sennheiser bluetooth | Newegg.com
BTD 500 USB Dongle : Electronics
BTD 500 USB Dongle : Electronics
USB Bluetooth Adapters
Sennheiser Bluetooth 4.0 - Bluetooth Adapter for Headset - USB 2.0 - 2.40 GHz ISM - 82 ft Indoor Range - External UC BTD 800 USB UC CISCO AVAYA IBM - Walmart.com
Poyatu Aptx Hd599 Bluetooth Adapter For Sennheiser Hd599 Hd579 Hd569 Wireless Adapter Receiver Bluetooth Cable Cord - Wireless Adapter - AliExpress
BTD 500 USB Dongle : Electronics
Sennheiser BTD 800 USB - Network Adapter - USB 2.0 - 1000227
Poyatu Aptx Hd599 Bluetooth Adapter For Sennheiser Hd599 Hd579 Hd569 Wireless Adapter Receiver Bluetooth Cable Cord - Wireless Adapter - AliExpress
VOXOA BTunes Wireless Bluetooth Adapter for Sennheiser HD518/558/598/569/579/599 : Electronics
Sennheiser EPOS BTD 800 USB ML Bluetooth Dongle
Sennheiser Bluetooth 4.0 Bluetooth Adapter for Headset - Walmart.com
Poyatu Aptx Hd599 Bluetooth Adapter For Sennheiser Hd599 Hd579 Hd569 Wireless Adapter Receiver Bluetooth Cable Cord - Wireless Adapter - AliExpress
Sennheiser BTD 500 USB Dongle Wireless Bluetooth Adapter (BTD500 USB)