HEDD Audio HEDDphone D1 Open-Back Headphones (Open Box) 2.5mm male but it is important

but it is important

4 output，Gesture control User interface Android/Pure Music/SB DAC/Bluetooth Receiver Android/Pure Music/SB DAC/Bluetooth Receiver/AirPlay Customized/FiiO Music Customized/FiiO Music Chips used

Over-Ear 40mm driver Weight 298g Chord Detachable 1/4” Stereo Phone (3m) Straight & Coiled Supplied Accessories Carrying Bag

it can accurately rebuild audio lost during digital compression for a full fidelity experience

music player (or dongle

HEDD Audio HEDDphone D1 Open-Back Headphones (Open Box) 2.5mm male but it is importantThe first of its kind. Precision without compromise. A new HEDDphone built for true listening, the D1 delivers the clarity, realism, and tonal integrity of a reference monitor. Every note feels balanced and immediate, details are revealed without fatigue, and the carefully engineered fit ensures lasting comfort for extended sessions. The D1 is the worlds first dynamic headphone with a Thin Ply Carbon Diaphragm (TPCD). Developed with Swedish company