Material:Alloy Model Number:SK-0204 Origin:Mainland China New Exhaust Pump Exhaust Valve Control System Made in SINCAR TECHNOLOGY . We are a manufacturer, all products before the sale of strict testing. Factory price is the best price, product quality assurance! Detali: 1: black color and blue color 2: Please tell us if you need put the logo on the box, thanks Configuration: 1 : Pumps, remote controls, 2: With SET button, after the remote control is disturbed, you can use the SET button to re-pair the remote control and restore the work of the remote control! Power: 12V Material: Plastic shell, interior upgrade, more portable! Frequency of remote control and antenna: 315 Remote Controller: 2 Pcs About of the battery: Due to air transport express requirements, batteries are not allowed in the package. So sometimes have no battery in the remote control, You need to buy a battery of model CR2016 and installing by yourself. Thank you. About of the customs duty: The shipping cost not including the customs duty in the order. The carton is big and heavy of the items, so sometimes the customs ask for the duty with your order. Please to understand that and do it. Please leave the message in your order if you need the notes in the shipping waybill and invoice. Enjoy your shopping. Some countries can be free of customs fees, Please contact us before order, Thank you! About of the warranty: All exported goods enjoy 1 year warranty period. Please make the video and take the photos to us if the items have any trouble. We will give you the idea After our technician checked. we will send you the parts if needs. Thanks. All of the items have tested before the delivery. and do the best quality for the customers. SINCAR FACTORY: ZHEJIANG SINCAR TECHNOLOGY CO.,LTD We specialize in the development and production of automotive exhaust valve system products. Electric valve and vacuum valve and valve muffler and muffler tip etc. We welcome dealers from all over the world to cooperate, we will give the most favorable wholesale prices.Please to chat with us if you have interested. Contact online customer service, will give you the contact information of the manager.