The ABBTM-2.4GHz-31-T from Abracon LLC is a RF Module with Frequency 2.4 & 2.48 GHz, Data Rate 115.2 to 721 kbps, Supply Voltage -0.30 to 3.6 V, Operating Temperature -40 to 85 Degree C, Storage Temperature -40 to 150 Degree C. More details for ABBTM-2.4GHz-31-T can be seen below.