The WS4455 with SOT23-6 RF Transceiver ICs ROHS is a miniature radio frequency (RF) transceiver IC that is designed for short-range radio communications. It is manufactured by Wisesun Technology Co. Ltd, a Chinese company that specializes in the design and manufacture of RF and microwave transceiver ICs for various applications. The WS4455 utilizes a monolithic SOT23-6 package and is compliant with the ROHS standard. It operates within the Industrial, Scientific, and Medical (ISM) bands, such as 433.92 MHz and 868 MHz, with a maximum transmission power of +18dBm. The WS4455 supports multiple modulation mode schemes, including GFSK, and has built-in data encryption, interference rejection, and error correction coding. The IC provides a variety of features and functions, including automatic frequency hopping (AFH), multi-channel selection, frequency deviation selection, packet transmissions, and a wide receiver dynamic range. It is suitable for applications such as wireless remote control and data transmission for consumer and industrial electronics, home automation, and audio/video streaming.