ShenZhen YHD Technology Co.,Ltd factory founded in Shenzhen, China by a creative and dynamic teams. YHD devoted to the design, manufacture, marketing and sales of active noise cancelling headphone and earphone, hearing protecting equipment, noise reduction solution etc products. Nowadays noise is everywhere, Trains, plains, and Air plane etc transportation equipment has never been quiet. Every morning commute is also with the sounds of passengers and mechanics steadily at work, all of which have a tendency to perforate our eardrums whether we want it to or not. Thankfully, noise-cancelling headphones are more efficient and useful, cancelling the ambient noise and low-frequency sounds with a microphone and some tricky circuitry. While they typically run a little high price. So our mission is to develop better sound products with active noise cancelling function at the most competitive price. Make everybody can have it and protecting our ears especially from the noise environment. YHD used to provided ANC technology support and ODM/OEM design solution for many well-known manufactures and famous brands such as AKG , Audio-technica , PANASONIC etc. Here all the core team members have over 10 years working experience in ANC field. We keep on developing a series of high-performance active noise cancelling earphones, headphones, earmuff and other hearing protecting electronic products for personal and professional use. Welcome to contact us if you are interested in it.