Reverse Horn Waterproof Back-up Alarm Super Loud Beeper for Heavy-duty Engineering Vehicle The product is specialized in doing excavator,construction machinery and other Special vehical,container vehicle,large vehicle.These produts alla kinds of performance is stable and reliable,which compare favorably with part od inportant products. TEMB has been developing electronic products since 1990s, our company has independently developed digital electronic horn, digital annunciator and other products. And the annunciator has been supplied to more than 10 domestic OEM customers such as BYD, SDLG, XCMG, LONKING, LOVOL, SEM, etc. Why Choose Us 1.OE supplier, Reliable quality. 2.OEM, buyer design, buyer label services provided. 3.Exclusive and unique solution can be provide to our customer by our welltrained and professional engineers and staffs. 4.we have the certification of IATF16949 5.Special discount and protection of sales area provided to our distributor. 6.timely delivery 7.Good after-sale service 8.Small MOQ is acceptable