Features: 

The real GFSK monolithic transceiver chip 

Built-in hardware and link layer 

Automatic response and automatic retransmission function Address and CRC check function Wireless rate: 1 or 2 MBPS 

SPI interface rate: 0 ~ 8MBPS 

125 optional channels work 

Channel switching time is very short， can be used for frequency hopping 

I/O can accept 5v level of input 

±60ppm 16MHz crystal 

Low working voltage: 1.9 ~ 3.6 V 

The global open ISM frequency band， the maximum 0dbm transmitted power， free license to use. 14.Transmission distance up to 100 meters in outdoor open occasions!  

package content: 2pcs NRF24L01+ 2.4GHz Wireless Module