HopeRF RFM69HW-868-S2 Module 868MHz, 1.8 → 3.6V
6V, Modulation Technique: FSK, GFSK, GMSK, MSK, OOK, Maximum RF Data Rate: 300kbit/s, Maximum Output Power: +20dBm, Receiver Sensitivity: -120dBm, Supported Bus Interfaces: SPI, Dimensions: 19.7 x 16 x 1mm, Height: 1.8 → 3.