[Chip]：LLCC68

[Working frequency]：410MHz～493MHz

[Transmit power]：22dBm

[Distance]：6km

[Size]：10*10*2.5mm

[Weight]：0.5g±0.02g

[Introduction]：E220-400MM22S is an ultra-small volume independently developed based on a new generation of LoRaTM RF chip LLCC68 produced by Semtech, and is suitable for 433MHz, 470MHz SMD LoRaTM wireless modules, using industrial grade 32MHz crystal oscillator