1. 2.4G remote control helical drive/ spine/2 speed acceleration2. Chuck drag reduction design. Swim in water without pressure. The aerodynamic design effectively reduces the resistance of water flow and wind.The movable joints of the tail imitate the real swing joints with different bumps to show different moving paths in the water3. Sealed waterproof cover screw blockage reinforcement sealing waterproof cover design effectively prevents water from entering the interior during manipulation4. Dual-propeller design with built-in high-efficiency dual-motor dual-propeller drive, easy to achieve left and right swing forward, full of power and multi-directional control5. Multiplayer game competition does not interfere with 2.4GHz wireless remote control, 30 meters long distance control stand-alone single frequency, suitable for multiplayer competitionApplicable people:unlimitedFeatures:2-in-1Ability training:emotion, vision, intelligence development, hands-on brain, grasping, sensory, hand-eye coordination, other ability training, interactive toys, hearing, parent-child communication, interest trainingRemote control :handleColour:BlackMaterial:PlasticSize:34.5x14cmPackage Contents:1 * fish toy1 * remote control1 * battery charger1 * screwdriver2 * spare propeller1 * rechargeable battery1 * Chinese and English instruction manualOnly the above package content, other products are not included.ote: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.