2Speaker RC Siren Whistle Sound Groups Simulation For RC Ship Whistle

2Speaker RC Siren Whistle Sound Groups Simulation For RC Ship Whistle Description: 2Speaker RC Ship Whistle Siren Whistle Sound Groups Feature: 1.The third channel (or other accessory channel. panel control suit any switch channels) of remote control 2.Two kind of sounds (long and short) Specification : supply scope: 6-12V Color: as the picture shown Weight: 40g Size : 6*3.5*2.5cm Manufacturer recommended age: 14 years and up Note: 1.If using the 3S battery from electrical please contact customer service And to modify module Otherwise it will burn amplifier. 2.Any use of battery-powered devices for more than 2 or 2 blocks of using this product, please ask customer service! Otherwise may cause equipment destroyed! 3.Handmade, welding not like factory batch products such as beautiful. 4.Size described above may be a little bit vary from the real one due to manual measurement. please make sure you do not mind before you bid. Package Included:1 X Sound Groups