27Mhz/40Mhz Simple 4 Channel 10 Meter Radio RC Transmitter Receiver Board Kit for DIY Remote Control Boat Car Projects  
Product Descriptions:  
Dimensions: 3.5 * 7 cm emission plate,     
Receiver board 2.6 * 4.3 cm.  
Frequency: 27MHZ/40Mhz  
Emission plate voltage: 3-4.5V.  
Receive board working voltage: 4.5v-6v.  
Received board OUTPUT :4 lines,2v-3.5v  
receiving range about 10meter  
Connection method:  
  (A) emission plate: red V+ positive power supply,  black wire V-  negative power supply,    ANT connect the antenna. 3-4.5V  
 (2) receiver board: black wire = negative power supply,  red wire =positive power supply.  
L R wire for moter 1   can supply  continue powerful supply  
F B wire for moter 2   can supply continue power supply  
Note:  
only can use small power motor, such as 130 motor,   
high power motor can burn the board.  
 it can control 2 motor go and back  
what different between 20Mhz and 40 Mhz?  
them are same, only the frequency different, use different frequency, they can play together at same time.   
Package includes:  
1set x  Transmitter Receiver Board Kit  

Item specifics:  
Material: other  
Size: 3.5 * 7 cm  
Tool supplies: Assembly Category  
Remote control peripherals/devices: others  
Use: Vehicles & Remote Control Toys  
Four-wheel drive attributes: Assemblage  
Model number: for DIY Remote Control Boat Car Projects  
For vehicle type: Cars  
Upgrade parts/accessories: Receiver Board  
Rc parts & accs: Transmitter