The manual and user interface is in Chinese but it is very easy to guess just by reading the provided diagrams. Saying that, I can't provide any technical support so be sure you're capable to operate this type of device.
This is a networking item, I can't guarantee performance as it depends on many factors.
Shipping Information
I ship everything with Parcel Rate with tracking # to qualify for eBay protection. I do combined shipping. If you intend to buy multiple items, email me to get a shipping quote. Or you can buy them without paying first. I'll send out an invoice with reasonable shipping charge.