This product is a children's toy, allowing you to control a shark toy swimming in the water through a 2.4GHz wireless remote control.The product features an automatic pairing function, enabling one-to-one control after successful pairing.When pairing, keep the shark and remote control as close as possible.The remote control shark has a water-sensing function, where the motor stops running when the fish is taken out of the water!The remote control fish is water-resistant, while the remote control does not have water resistance.Operate the remote control shark only in calm, clear water, preferably in a shallow water pool.Avoid operating near concrete walls, as this may cause interference with transmission.Avoid prolonged use in saltwater and do not submerge the remote control in water!After each use, wipe it with a towel and ensure it is completely dry.Specification:Material:plasticSize:9.5*22*6cm\3.7*8.7*2.4"Color:grayBattery:3.7V 150mAh,charge time 50min,battery life 6minRemote control battery 2*1.5v AA not includeRemote control distance is approximately 5 meters on water and diving depth is 30-40 cm. The distance after diving is approximately 3 meters.Package include:remote control shark* 1, remote control * 1, lithium battery * 1, cable* 1 Notes:1. Due to various factors such as monitor brightness and light brightness, the actual color of the product may be slightly different from the picture displayed on the website.2. Please allow for slight manual measurement bias in the data.