The FiiO M21 is an entry-level Android audiophile digital audio player (DAP) featuring a quad CS43198 DAC, 950 mW balanced amplification, and desktop mode.
The Melomania P100 is a circum-aural bluetooth with adaptive noise reduction, with 40 mm transducers and a Class A / B amplification. Its autonomy reaches 100 hours and its battery is replaced.
Devialet's Gemini II True Wireless in-ear headphones combine the "Devialet" signature sound, adaptive noise cancellation of up to 40 dB, and up to 22 hours of battery life with the charging case.