Description:Basic information - Item No:S820Color:Brown - Max Speed:8km/h - Power System - Motor:Dual brushed motorsTransmitterFrequency:2.4GChannel:4CHRemote Distance:About 30m - Required Battery:3X AAA battery(not included)Battery - Boat Battery:3.7V 100m - Ah Li-ion battery ...Description:Basic information - Item No:S820Color:Brown - Max Speed:8km/h - Power System - Motor:Dual brushed motorsTransmitterFrequency:2.4GChannel:4CHRemote Distance:About 30m - Required Battery:3X AAA battery(not included)Battery - Boat Battery:3.7V 100m - Ah Li-ion battery(included)Battery Charging Time:About 25minutes - Battery Playing Time:Approx.13 minutesOtherMaterial:ABS plastic+electronic partsDimensionBoat Size:12*5*7cm - Box Size:17*18*6cm Features:Rotating searchlight Simulated luminous shipyard - Diy plays with tugboats Fulbof fun - Multi speed adjustment humanized, more fun - Water separation,sensing device safe,no switch required - Twin propeller,propulsion Strong power output2.4G high-frequency,intelligent control,simple control system - Built in battery design,effectively preventing short circuits - USB intelligent charging,hidden interface - Package Included:1X RC Boat1X Battery(Built-in)1X Remote Controller1X USB Charging Cable1X Manual