Experience incredible audio performance from these high-resolution wireless headphones, and discover all the nuances and subtleties in your favorite music. Featuring adaptive ANC to reduce background noise, the Mark Levinson № 5909 delivers reference-quality sound via 40 mm beryllium-coated drivers and high-resolution Bluetooth 5.1 connectivity. The № 5909 has been engineered to provide you with optimal sound for an over-ear headphone. Its sound profile has been expertly tuned to an acoustic response curve that achieved the highest subjective scoring across listening tests. Experience reference-quality sound, the culmination of decades of research into listening preferences and the science of acoustics. Hold conversations comfortably, in nearly any environment. Four beam-steering microphones with Smart Wind Adaption prevent your voice from being muddled by outside noise. At the same time, ANC blocks ambient sounds so you can focus on what’s being said. Connect with family, chat with friends, and hold business calls – all in near-perfect clarity. Dive deep into your music and block out background noise as you travel. Three modes of Adaptive Active Noise Cancellation allow you to enjoy the subtle details in your music even amid noisy environments, such as during air travel. For added convenience, an Ambient Aware mode lets you talk to those around you without removing your headphones.