The Denon AHC840NCW wireless in-ear headphones in white feature advanced noise-cancellation technology and Soundmaster tuning for exceptional audio performance. With a battery life of up to 35 hours with noise cancellation activated, they allow for long listening sessions without frequent recharging. The Bluetooth connection ensures stable wireless operation with compatible devices, while the ergonomic in-ear design provides a comfortable, secure fit for various ear shapes. Developed with Denon's audio expertise, these headphones reproduce clear, balanced sound across different music genres. The noise-cancellation function effectively reduces ambient noise, creating an immersive listening experience. The compact charging case offers additional battery capacity and convenient storage with intuitive controls for playback, calls, and noise cancellation settings. Made from durable materials, these headphones maintain their performance during daily use. The IPX4 certification provides protection against sweat and light moisture, making them suitable for workouts and outdoor activities. The microphone system enables clear voice calls with noise-cancellation technology that minimizes background disturbances. These headphones support various audio codecs for high-quality wireless streaming, with automatic pairing functionality that simplifies the connection to already paired devices. The included silicone ear tips in multiple sizes ensure optimal acoustic sealing and comfort for different users. LED indicators display battery status and connection information, while the magnetic closure of the charging case securely stores the headphones when not in use.