5 sets of transmitters and receivers in a package. The modules are practical with great stability and quick reaction. 

Features: 
5 sets of transmitters and receivers in a package. 
The modules are practical with great stability and quick reaction. 
The application of wireless technology makes it convenient to use. 
Can be used with external antenna(not included). 
Ideal for many kinds of remote control devices. 

Specifications: 
Transmitter: 
Voltage: 3.5-12V 
Frequency: 315MHz 
Transmission Rate: 4KB/s 
Transmitting Power: 10mW 
Pins(Left to Right): DATA, VCC, GND 
Working Distance: 20-200m 
Receiver: 
Voltage: DC5V 
Quiescent Current: 4mA 
Frequency: 315MHz 
Sensitivity: -105DB 
Transmitter Size(1pc): 19 * 9 *7mm / 0.7 * 0.4 * 0.3in 
Receiver Size(1pc): 30 * 14 * 7mm / 1.2 * 0.6 * 0.3in 
Item Weight(1set): 5g / 0.2oz 
Package Size: 13 * 9 * 1cm / 5.1 * 3.5 * 0.4in 
Package Weight: 26g / 0.9oz 

Package List: 
5 * Sets of Modules