The Spektrum DSMX Quad Race receiver provides a high speed serial data connection with up to 18 channels. It's small and lightweight providing an excellent receiver for even the smallest of applications. It also features Auto-Bind so you no longer need to carry a separate receiver to bind. Dual antennas provide receiver diversity for solid signal and the long coax antennas help to provide maximum signal strength in all orientations for challenging installations where carbon fiber, metal and batteries shield the antenna. And with Spektrum DSMX 2.4GHz RF protocol the Spektrum DSMX Quad Race receiver provides unsurpassed range and interference free performance for quad racing.