The closed-back HE-R10D Wireless headphones from Hifiman impress with their real wood housing combined with 50mm dynamic drivers. Thanks to Hifiman's specially developed topological driver design, you can enjoy your music with a very natural and detailed sound across all frequency ranges. The large interior space of the ear cups made from solid wood provides the driver with ample volume and breathing room, resulting in a powerful spatial sound. The headphones deliver pure listening pleasure - either wired to portable and stationary devices via the 3.5mm headphone cable or wirelessly via Bluetooth with smartphones, tablets, PCs, and music players using the included detachable Bluemini Bluetooth module, which supports the codecs aptX, aptX HD, AAC, and LDAC for high-resolution wireless audio formats. The ear cushions are made of memory foam and are surrounded by high-quality leather for maximum comfort. The contact surfaces of the ear cushions are made from extra breathable material to ensure high comfort even during long listening sessions. The ring-shaped inner surface absorbs sound and focuses it on the listener's ear. Additionally, the solid wood ear cups ensure that no external noise enters and that the music played is not audible to the surroundings - for uninterrupted music enjoyment in high-end quality.