T&B NRF24L01+ 2.4ghz Transceiver Antenna PA LNA SMA GPS Wireless Communication Module Chips,1100m with Antenna for Arduino, Raspberry Pi, and other microcontrollers Low Cost - Setup your wireless communication system with low cost. Easily Add - with your own MCU/ARM/PIC/AVR/STM32 system. Up to 1000 Meters - Use the wireless communication up to 1000 meters! (No barrier) 6 Channels - Support up to six channels of data reception. Frequence - 2.4GHz~2.5GHz Operating voltage: 3 ~ 3.6V Max Current: 115mA Multi-frequency: 125 frequency.