Cowin is an audio products and electronics innovator which founded in 2006.The main focus is on TWS Earbuds,ANC Headphone and Bluetooth Speakers.we holding more than 230 patents,have been approved by ISO 9001,BSCI, CE, FCC, BQB, ROHS certifications. Cowin sincerely looking forward to establish a long term cooperation business and win-win relationship with every customer all over the world.