Features:Peculiar loudspeaker with six tone sound system.Small sizewaterproof mainframe，waterproof remote.Imported chip with strong anti-interference and stable performance.Car locating，car overtaking，anti - hijacking.Engine starting and flameout by remote control.Sensitivity adjustment，low power consumption.Specification:Material: ABS + Electronic ComponentsOperating voltage: 9-15VQuiescent Current: <3.5mAOperating frequency: 315MHZSpeaker Specifications: 125dbSpeaker size: 5.45x5.45x3cm， wire approximately 35cm / 6.2x6.2x3.4cm， wire approximately 35cmHost Size: 8x6.5x2.3cm， wire approximately 12cm Free Line��65cmRemote control Dimensions: 7.6x3.66x1.7cmWeight: 300gGross Weight: 360gPackage Size: 21.5x17.5x3.8cmPacking Accessories: Host X1 speakerX2 Remote control X2 Sticker X1 Free Line X1