Q: How long is the effective range of the wireless calling system?

A: The effective range is about 200m in a clearing, the straight line distance is about 40-60m indoor. And it wonot cause 

the wrong number; shorten the detection distance, as the time goes on

Q: Do you accept the small order? For example we just buy one mobile receiver and one button?

A: Yes, you can contact with us

Q: Can we put our logo on your products

A: Yes, we can customized your logo. But the quantity of the items have special requirements.

Q: What certifications do Ycall products have?

A: CE, FCC and RoHS.

Q: How long is the guarantee?

A: Ycall items enjoy one year warranty and maintenance for life.

Q: Do you provide technical support?

A: Yes, technical support is available after sales.

Q: What is the delivery time ?

A:Normally, it is shipped with three days after payment received.

Q: How about if I do not know much about this item, and could not install it?

A: This item has full function but easy to operate, the only thing you need to do is to set this item as the instructions 

sent to you, and if you still feel confused, you could leave a message to us, and we are willing to help you solve any 

kinds of questions.