You can connect an ECHOMAP™ Ultra 2 device to another ECHOMAP Ultra 2 device or to a ECHOMAP UHD2 device wirelessly to share user data and sonar (Connecting Two Compatible ECHOMAP Devices to Share User Data and Sonar). The first time you open the wireless network settings, you are prompted to set up the wireless network on the host device. After you set up the network, you can also connect the device to other wireless devices, such as your phone, to use the ActiveCaptain^® app (Getting Started with the ActiveCaptain App).