The SI4461-C2A-GM is a transceiver IC that belongs to the general ISM < 1GHz RF family/standard. The device has a frequency range of 142MHz to 1.05GHz and supports 4GFSK, GFSK, GMSK, and OOK modulations. The device has a sensitivity of -129dBm and a data rate of 1Mbps. It has four GPIO and is surface-mounted with a 20-VFQFN Exposed Pad package/case and a 20-QFN (4x4) supplier device package. The device is suitable for applications that require low-power wireless communication.