The M600B offers thanks to the XBS Deep (extra bass system) technology a clearly defined, deep bass and a dynamic sound without unwanted background noises. The ANC is perfect for people who want to be free from unwanted background noise. The Feed Forward microphones identify external noise, while the feedback microphones intercept unwanted internal noises With the long battery life, a wireless playback of up to 65 hours is possible. If you need another six hours of battery, you need only a 15-minute quick charge with the included USB-C cable. With the cushioned, adjustable headband and the rotatable ear cups the RB-M600B looks good in everyday life. Thanks to Bluetooth 5.3 technology, the RB-M600B can be quickly paired with two devices simultaneously, providing a stable connection even in busy locations. It enables a better music and call quality than earlier Bluetooth versions and completely at the same time also a more efficient battery consumption. Due to the integrated microphone and the ENC (Environmental Noise Cancellation) technology, the RB-M600B is just as strong when making phone calls as it is when playing music. With Siri and Google Assistant compatibility, just by pressing a button and a 'wake word' away, the headphones are designed to work with smartphones. This text is machine translated.