The H34P-433M with Ask/Ook RF Modules ROHS is a radio frequency (RF) transmitter and receiver module manufactured by Feng Niao RF. This module uses a frequency shift keying (FSK) and on-off keying (OOK) modulation technique, which enables it to transmit signals in a secure, efficient, and cost-effective way. The module features a wide range of frequency coverage that supports most standard platforms and radio protocols. It also has a low power consumption of only 2.4V, allowing it to be powered by a single lithium-ion or AAA battery for extended periods of time. Additionally, the H34P-433M is highly reliable and meets RoHS compliance standards. As such, it is ideal for applications such as industrial control, security, home automation, and more.