The ABBTM-NVC-MDCS42A from Abracon LLC is a RF Module with Frequency 2.4 & 2.48 GHz, Supply Voltage 2.7 to 3.7 V, Output Power 4 dBm, Sensitivity -84 dBm, Operating Temperature -40 to 85 Degree C. More details for ABBTM-NVC-MDCS42A can be seen below.