[IC]: CC1101
[Frequency]: 387~464MHz
[Power]: 10dBm
[Distance]: 0.5km
[Size]: 15*30mm
[Weight]: 2.5±0.1g
[Feature]: Low power consumption
details[IC]: SI4463
[Frequency]: 425~525MHz
[Power]: 20dBm
[Distance]: 1.8km
[Size]: 16.6*24mm
[Weight]: 3.2±0.1g
[Feature]: Long distance, diffraction
details