- Receiver suitable for Radio Trigger Set Duo.- convenient for triggering several compact flash devices.- multifunctional: 16 channels.- easy, straightforward operation.- tilting device with 1/4 inch tripod thread and hot shoe.The Trigger Set Duo from walimex presents itself as a reliable device. The Receiver is also available separately, so that you can trigger several flash systems at once. The Receiver with the flash shoe is simply slid below your compact flash device and connected with e.g. a tripod via the 1/4 inch connection.