The PSB M4U 9 are premium wireless over-ear headphones designed for discerning listeners. They feature advanced graphene-infused drivers that deliver clear and detailed sound across all frequencies. With active noise cancellation, these headphones ensure an uninterrupted listening experience, even in noisy environments. The ergonomic design, including gyro-suspended ear pads and an adjustable headband, provides long-lasting comfort for extended use. Bluetooth connectivity with aptX™ Adaptive support ensures high-quality, low-latency audio streaming from your devices.Key Features Graphene-infused 40mm drivers for enhanced audio clarity and efficiency. Active Noise Cancellation (ANC) to minimize ambient noise for an immersive experience. Bluetooth with aptX™ Adaptive codec support for high-quality, low-latency wireless audio. Personalized sound profiles using Audiodo Personal Sound technology via the PSB Headphones App. RoomFeel™ technology that replicates the experience of listening to high-quality speakers in an optimized room. Ergonomic design with gyro-suspended ear pads and adjustable headband for superior comfort. Up to 25 hours of battery life in active mode for extended listening sessions. Why BuyThe PSB M4U 9 headphones offer a combination of superior sound quality, advanced noise cancellation, and personalized audio settings, making them an excellent choice for both audiophiles and casual listeners. Their ergonomic design ensures comfort during extended use, and the long battery life means you can enjoy your music without frequent recharging. Exceptional sound quality with graphene-infused drivers. Effective noise cancellation for uninterrupted listening. Customizable audio profiles tailored to your hearing preferences. Comfortable design suitable for long listening sessions.