SureCall's bi-directional splitters enable 2 to 4 inside antennas to be supported from a single amplifier or node. This accessory is great for deploying multiple antennas all of which are approximately the same distance from the amplifier and are thus suitable for an even distribution of signal strength. All splitter models are fully compatible with all 2G, 3G, 4G, and 5G signal booster deployments in the 600 MHz to 2700 MHz range under all North American carriers.