E49-900M20S

[IC]：CMT2300A

[Frequency]：850~930MHz

[Power]：20dBm

[Distance]：3km

[Size]：20*14mm

[Feature]：Low power

E49-400M20S

[IC]： CMT2300A

[Frequency]：410~510MHz

[Power]：20dBm

[Distance]：2.5km

[Size]：20*14mm

[Weight]：1.2±0.1g

[Feature]：Low power consumption, high cost performance

E72-2G4M23S1A

[IC]: CC2630

[Frequency]: 2.402~2.480GHz

[Power]: 23dBm

[Distance]: 1.5km

[Size]: 17.5*33.5mm

[Weight]: 2.2±0.1g

[Feature]: Dual-core ARM