[IC]:EFR32BG22
[Frequency]:2402~2480MHz
[Distance] :120m
[Size]:13*19mm
[Weight]:0.8±0.1g
[Feature]:Low power consumption, Bluetooth 5.2
details[IC]: ASR6501
[Frequency]: CN470~510MHZ
[Power]: 22dBm
[Distance]: 7km
[Size]: 14*20mm
[Feature]:LoRa spread spectrum Continuous transmiss
details[IC]: nRF51822
[Frequency]: 2.379~2.496GHz
[Protocol]: BLE 4.2
[Distance]: 0.1
[Size]: 17.5*28.7mm
[Weight]: 1.9±0.1g
[Feature]: Low power consumpti, bluetooth
details