2:Range:=100m in open area. 3:Power Supply, Transmitter:2 batteries AAA for HS-4/6 or 2batteries AA for HS-8/10/4S/6S/8S/10S. 4:Power Supply, Receiver:see label on receiver. 5:Output Interface:Relay 12V, 5A.Thank you for your support. We are not responsible for undeliverable address. Terms of Sale: Dear friend, your happy is very important to me! We stand behind every product we sell. You can enjoy top-quality product and high-quality services from us, Trust me that you will have a pleasant shopping experience in here. We will be happy to assist you. We would try our best to serve you with any question / problem. This item is in the category "Business & Industrial\Material Handling\Hoists, Winches & Rigging\Lifting Machine Parts, Rigging\Lifting Machine Remotes". The seller is "lookbester" and is located in this country: CN. This item can be shipped worldwide.