SU8 new products: 1. Real-time ear return function 2.DSP sound card effect chip (unique on the market) 3. Upper and lower breathing colorful RGB lights 4. Active environmental noise reduction function 5. Acoustic mode / KTV mode (traditional only an acoustic effect) 6. Reverb size adjustment (traditional analog audio, SU8 is a stereo digital transmission audio effects) 7. Headphone volume adjustment PCS/CTN:1 CARTON SIZE:22.2*18.1*5.8cm