BIONIC SHARK is a new breed of water toy that is super easy to operate and loads of fun. BIONIC SHARK has dual motor drive system and bionic spine that creates a realistic swimming motion that look ... s like a real shark. BIONIC SHARK also features 2 speeds (slower speed for bathtub setting) and an auto-pilot mode that you can use to make the shark swim straight or a figure 8 just with a press of a button. not intended for use in salt water. Includes rechargeable LiPo battery (3.7V350 mAh), USB charging plug, 2 replacement propellers and small screwdriver. 1) Remote Control BIONIC SHARK for loads of freshwater fun! 2) Dual motor drive system and bionic spine for realistic swimming motion! 3) 2 Speed settings (slower speed for bathtub setting) 4) Auto-pilot mode for swimming straight or figure eight 5) Includes rechargeable LiPo battery (20 min. play time)