1.Dolphin features precise positioning and precise navigation. Positioning, navigation error radius is less than 2 meters.High speed with 775 motors. 2.Dolphin can set directional fixed distance in automatic navigation, and can preset the navigation distance from 20 meters to 300 meters (adjustment interval of 20 meters) on the remote control to realize automatic navigation and automatic bait drop. 3.Dolphin can store 16 target bait points. After the target bait points are stored for the first time, they can be used again on the same water location, in different fishing positions, within a radius of 1000 meters , and can achieve precise positioning. More chances of catching big fish, bring more fun of fishing. Especially in night fishing occasions, this surfer bait boat will also 4.Built in antenna with 300-500M long range,no need external antenna. 4.Working frequency is 2.4g, 250 frequency points can be set, different frequency points can be preset. In the same fishing location, multiple bait boats can be used at the same time without interfering with each other. 5.The starting point shall be set before using. After the starting point is successfully set, the bait boat can return safely after each journey. Every time you turn on the power switch of the bait boat, it will automatically start to establish contact with the navigation satellite. It usually takes 3-5 minutes to successfully establish a good contact. 6.The unique design of the our bait boat automatically releases the bait pin. Its advantage is that the feeding point can be seen visually, and the bait pin is automatically reset and travels more smoothly. 7.This boat uses stainless parts,stainless line release pin,screws,waterproof hull, suitable for both salt and fresh water conditions. 8.Rechargeable remote with built in antenna makes it so easy to use and charge, no frequent change of remote batteries and antennas.