The receiver is compatible with X1T-C transmitter, operating distance can reach up to 100 meters.Features:Compatible with X1T-C transmitter.Support GR group flash, max.5 groups & 32 channels.2.4G wireless transmission, operating distance can reach up to 100 meters.Can be used as a shutter release.LCD screen for convenient operation.Specifications:Model: X1R-CCompatible: X1T-C transmitterChannel: 32Group: 5Operating System: 100 meters(Max.)Output: 2.5mm sync cord to outputBuilt-in Remote System: 2.4G wireless transmissionModulation Mode: MSKBattery: 2 * AA(Not included.)Item Size: 7 * 6.3 * 4cm / 2.8 * 2.5 * 1.6inItem Weight: 65g / 2.3ozPackage Size: 10.5 * 10.5 * 5cm / 4.1 * 4.1 * 2.0inPackage Weight: 162g / 5.7ozNote:The battery is not included.Package List:1 * Receiver1 * C1 Cable1 * C3 Cable1 * Sync Cable1 * Sync Adapter