Spektrum DX18 Stealth Edition 18-CH TX System MD2 withAR9020 SPM18200 The DX18 Stealth Edition 18-CH TX System MD2 with AR9020 has a distinctive look and exclusive extras!Like the original DX18, the Stealth Edition puts the most impressive combination of features ever made available in a handheld transmitter right at your fingertips. To this it adds a distinctive black finish along with an exclusive Stealth Edition aluminum carrying case and neck strap. You also get an AR9020 9-channel