[Working frequency]: 2.4GHz

[Transmit power]: 20dBm

[Communication distance]: 0.5km

[Product size]: 13.5*19.3*2.2mm

[Product net weight]: 1.1±0.1g

[IC]: EFR32

[Frequency]: 2.40~2.48GHz

[Power]: 20dBm

[Distance]: 1.0km

[Size]: 17.5 * 28.7 mm

[Weight]: 1.6±0.1g

[IC]: EFR32

[Frequency]: 2405~2480MHz

[Power]: 18~20dBm

[Distance]: 1.3km

[Size]: 11.5*18mm

[Weight]: 0.9±0.1g