ShenZhen DaLang Digital Tech. Co.,Ltd.Mainly design and Produce :Smart electronics,Earphones & Headset,Projectors,and other Electronics,We accept ODM and OEM orders,If you have any good idea,You can feel free to talk to us,We will try our best to make it come true.We have our own engineering team.Our own Workshop,You are welcome to visit us any time you feel convenient.