Sennheiser HD 350BT Headphones Enjoy great wireless audio on the go or at home with the HD 350BT. Thanks to Bluetooth 5.0, high-quality codec support (AAC, aptX Low Latency), and an excellent 30-hour battery life, this stylish and durable wireless headset is your versatile companion for experiencing better audio wherever you are. Accessory List: What’s in the box: HD350BT Wireless headphones, USB-C Charging Cale, Quick guide Depth: 90 MM Height: 190 MM Width: 170 MM Battery Life (in hrs): 30 Bluetooth: Y Dongle Required: N Noise Cancellation: N Wifi Enabled: N Engaging sound experience with deep dynamic bass. Flawless transmission is assured by the latest wireless technology Impressive 30-hour battery life and fast USB-C charging, the HD 350BT is your ideal companion for listening throughout the day. Controlling music and calls is also intuitive thanks to easy-access touch buttons on the earcups Low latency reduces sound delay for superior audio when watching video content Dedicated Voice Assistant button for instant voice interaction with Siri or the Google Assistant Special podcast mode can be selected to optimize the intelligibility of your favorite podcasts, audio books, and other speech content.