Take advantage of an enhanced signal by combining the CA-01 cellular antenna to your cellular camera. Suitable for the Link-Evo, Link-S, and Link-Dark camera models. Also compatible with most of cellular cameras on the market, adaptor provided in the box. It features an external omnidirectional antenna (passive), enhances cellular signal (effective in low coverage area), has 15 ft cable length, RP-SMA male connector, and bracket for easy installation. It does not require external power.