The range extender increases the range of your deeper smart sonar and stabilises the WiFi connection, so there are fewer jerks and dropouts. At least doubling the range is to be expected. The whole thing comes in a waterproof and ultra sturdy box. The box contains everything you need to make your sonar use even more comfortable. The smartphone and tablet holder can be mounted on the housing of the box, so you have all hands free while you control your boats. A standard tripod thread is attached to the box, so that any standard tripod can be used. A special feature is that the range extender is compatible with many voltage sources thanks to its universal voltage input. So it can be operated either with any standard power bank or with batteries between 10-18 V. The 4S lithium-ion battery available from us fits perfectly into the prepared slot inside the case. But also many power banks fit in there. Setup the range extender is childs play. Simply connect to the Wifi of the box, scan the QR code and follow the instructions.