ITEM NAME:433Mhz Wireless Channel Receiver Module Low Power Long Distance Moduï¼W 100% Brand New and High Quality ! Operating voltage: 2.0V - 5.5V Working temperature: -40 to +80 Frequency band: 433/315 (MHz) Receive sensitivity: -108 dBm @ 315MHz -108 dBm @ 433.92MHz Transmitting power: 1 (W) Dimensions: 23.5*9*1 (mm) Color:As Pictures Package Included:1 Pcs.Transmitting power: 1 (W). Color:As Pictures. Working temperature: -40 to +80.