This is a genuine, original OEM Helion HRSS-2.1 2.4GHz 2-channel transmitter. It is being sold as UNTESTED and without any mention of its condition. This transmitter is perfect for hobbyists looking to upgrade or replace their current transmitter with a brand they trust. The Helion brand is known for its quality and reliability, and this transmitter is no exception. With its 2-channel functionality and 2.4GHz frequency band, it is sure to provide a smooth and seamless experience for any RC enthusiast.