[Chip solution]：SX1268

[Working frequency band]：410MHz～493MHz

[Transmission power]：22dBm

[Communication distance]：7km

[Product size]：10*10*2.5mm

[Introduction]：E22-400MM22S is an ultra-small size and suitable for 433MHz and 470MHz SMD LoRaTM wireless module based on the new generation of LoRaTM RF chip SX1268 produced by Semtech in the United States as its core.