FIREWORKS Firing System Welcome to visit our online shop: http://www.aliexpress.com/store/301598 New 2 channels firing system, promotional only for September. Good quantity and good price, and we will send to you with free shipping and new package case.pls take your time Basic Usage,Plslook atthe picture. Receivers The first line-1,2,3--12 channels. The second line- 1,2,3-12 channels. Transmitter When you press button 1, then channel 1 in the first and second line will fire together. If you press button 2, also two channels will fire. You could fire therest with the same manner. More usage, Because of the programable and interchangeable function. You could use one button to control more receivers fire together. The product is special for stage fireworks, cake fireworks and other fireworks display. Using methord1.Please put the batteries into receiver, then turn on the power switch and lamp lighting. 2.Please turn on power swich of transmitter. Then press the button one by one.It indicates the transmitter is in good condition if the LED on receiver is red. 3.Please connect products in red&black plug .It indicates the line is ok if LED turns green. If the LED didn’t turn on, it means the products is not connecting well. Pls check it. But it will not effect the other channels. 4.Please press the transmitter button to fire the products. Products Features1. Transmitter- with power switch.2. Receivers- with antenna, signal more stable.3. Fire capacity: each channel could fire 5-6pcs display igniters and 1pcs safety igniter.4. Programable- one transmitter could control many receivers; a button on a transmitter could control many receivers.5. Interchangeable-If there is one receiver was broken, you could use other receivers instead only if the receivers are belongs to the same series. Or you just need to buy receivers ,don’t need to buy transmitter. Transmitter Parameters: 1. Type and Dimension- 12 button transmitter,13*5*1.8cm2. Range-100M-150M3. Power-10MW4. Frequency-315MHZ 5.5. Battery - 23A,12VReceiver Parameters:1. Dimension -11*7*2.5 cm 2. Channels -2 3. Power - 10.8W 4. Battery -4pcs AA batteries 5. Fire current -1.8A 6.Test current -3 MA 7. Weight- 0.1kg package cases for you