Sennheiser has released a special version of the Accentum Wireless headphones called Accentum Wireless SE.
The SE model has only two differences from the standard version: The included Bluetooth adapter and copper accents on the body.
Accentum Wireless SE comes with the Sennheiser BTD 600 Bluetooth adapter included. This device is designed to make it easier to pair the headphones with a PC or Mac, and to improve the sound quality. The adapter supports aptX and aptX Adaptive codecs. It also reduces latency.
Otherwise, Accentum Wireless SE are identical to the standard model. That is, they can also work like regular Bluetooth headphones without an adapter.
Sennheiser is already selling Accentum Wireless SE for $199/€199.