Performance techinical data as following detail.

Maximum: 400Hz ±75Hz/ Amp

Q1: Are you a factory or trading company?
A1: We are a factory, we can guarantee our price is first-hand, very cheap and competitive.

Q2: How does your factory do regarding quality control?
A2: All the products will be 100% checked before the shipment.

Q3: When can I get the price?
A3:Usually we quote within 24 hours after we get your inquiry.

Q4: How could I get a sample?
A4: if you can not buy our product in your local area, we will ship a sample to you.You will be charged a sample price plus all related shipping costs.Express delivery charge depends on the quantity of the samples.

Q5: What is the price of shipping?
A5: Depending upon the port of delivery, prices varies.