Ideal for boosting mobile signal in a car, van, 4WD, truck, motorhome, caravan or boat. Ideal for boosting mobile signal in a car, van, 4WD, truck, motorhome, caravan or boat. Support for 3G, 4G, and 5G DSS Suitable replacement for CEL-FI GO G31 Mobile Telstra Nextivity R41 Go Mobile Repeater - Black The Telstra GO ROAM R41 Mobile Repeater helps delivers more reliable 3G1 Refer to legal disclaimers, 4G, and 5G DSS connectivity inside most vehicles. With the latest Nextivity propriety IntelliBoost chip, the Telstra GO ROAM R41 offers enterprise-grade performance to improve signal in low reception areas and enable more dependable calling, texting, and streaming on the move. Set up your Telstra GO ROAM R41 with the Cel-Fi MyWAVE App for iOS and Android devices to automatically track the same base station to which your phone is connected.