The AH-C630W is Denon's first true wireless in-ear headphone, born from the sound master's desire for more music fans to enjoy their favourite songs in better sound. Like Hi-Fi audio components, it faithfully reproduces the sound, just as the artist or recording engineer intended. Careful and lengthy sound tuning was carried out to achieve a sound that allows you to immerse yourself in the music, or a sound that makes you want to listen to a song all the way to the end. Enjoy the Denon Hi-Fi sound, which is full of a sense of three-dimensionality and openness, built on a foundation of solid bass. Denon Hi-Fi Sound Equipped with a large-diameter (10mm) dynamic driver that has been repeatedly tested and adjusted by the Denon sound master to a high degree of perfection. The result is an overwhelming amount of information, wide spatial expression, and dynamism that delivers even the excitement of a live concert venue. Supports AAC, a high quality sound codec AAC and SBC audio codecs are supported, enabling high quality music playback on a wide range of devices including iOS and Android devices. Lightweight, comfortable fit & IPX4 waterproof With a weight of only 4.7g and a shape that fits naturally to the ear canal, they are comfortable to wear even after long hours of use. With IPX4 splash resistance, you won't be bothered by sweat during training or sudden rain when you are out. Hands Free Call Function It has a convenient call function that can be used not only for smartphone calls but also for video conferencing and voice chatting during remote work. Even if you receive an incoming call while music is playing, you can smoothly start a conversation with just a double tap on the touch sensor of the earbuds. Can be used on single earbud only It also supports music playback and hands-free calling on only a single earbud, allowing you to use it while listening to the sounds around you or while charging the other earbud. Simple and easy to use touch sensor The built-in touch sensor can be used to control music playback, make calls and call the voice assistant. Key Features Superior sound, tuned by Denon Audio Sound Masters Up to 4.5 hours wireless playback, up to 18 hours total playback with case re-charging Includes 3 sets of different size silicone ear-tips IPX4 rated for water/sweat resistance SBC Bluetooth 5.0 with LE (Low Energy)