Gemini II True Wireless Earbuds(Im)permeable Sound. Second generation. Second to none. Second generation Devialet Gemini II True Wireless earbuds packs a suite of enhanced tech to take you even deeper into pure sound. Pure sound. Purely inseparable. Transforming fifteen years of acoustics R&D and engineering into a smaller design, now with adaptive noise cancellation, improved ergonomy, and enhanced connectivity. Dual microphone Noise Reduction system Up to 40 dB of Noise