The only portable fish finder, fish attractor, and app you can bring with you wherever you fish. The original iBobber was designed with portability and flexibility in mind, and iBobber Pulse with FishSiren is no different. No matter the skill level and type, any angler can take the latest castable sonar fish finding technology anywhere, while also taking the smallest fish attractor unit on the market, all in one! Fishermen and -women can mark and call fish, map depth contours and underwater structure, GPS tag catch location, save fish species, water temp, photos and hot spots in the trip log, and choose to share on social media directly through the iBobber app if desired. For both the iBobber Classic and Pulse, the free iBobber app syncs your devices via Bluetooth Smart to iBobber, so you can map waterbeds, mark spots, log water temps and depth, add lures, species, and photos in the trip log.