40mm large dynamic speaker, natural bio-fiber diaphragm, stunning bass, crisp vocals, more equalized frequencies. Powerful combination of ANC and PNC, total noise cancellation up to -38dB, one-tap to eliminate external noise and uproar, etc. Dual EQ modes, free switch between normal human voice mode and punchy bass mode. Ultra-soft PU ear cushions, snug fit over ears, pressure-free comfort. Up to 100h ultra-long listening time, worry-free power for day and night. Lightweight build, foldable design, adjustable length, effortless wearing. Latest BT 5.4 technology, less audio loss, better anti-interference ability, instant connection. Dual-device connection, seamless switching between music, game and call. 3.5mm audio adapter cable included, enjoy wired/wireless HiFi audio with rich details. Intuitive multifunctional buttons, super easy to operate.