Characteristics:The SR3100 is specifically designed to take full advantage of the advanced protocols used in the DX3R racing system.In addition to fault-free performance, it will provide the fastest response in any extended receiver.It provides you with all these advantages. Its package is small enough to be easily installed on a 1/18 scale chassis.Full advantages of advanced extension protocol used in DX3R racing systemFastest response rate Specification:Frequency band: 2.4GHzLength: 33.1mmWidth: 21.6mmHeight: 12.35mmVoltage: 3.5-9.6V Color: orangePackage includes: 1 x * SR3100 receiverNote: Please allow a little error due to manual measurement. Please make sure you don't mind before bidding The color may vary depending on the display. Please understand Note: Hello, please pay attention to your shipping address when purchasing products. If your receiving information (such as name, street, house number, doorbell/email without name) is incorrect, the order will not be delivered correctly.)