Hi,
You are welcome to come test the units in our Factory in Shenzhen, you can just call us or email us or via skype to fixe an appointement.
I arrived yesterday in shenzhen, i am going to stay for 7 days, are you available next monday morning? i came with my partner, if your units are good we are thinking to start with 10 units, we also have many questions about it, waiting for your prompt reply,
thank you.