, interference free 2.4GHz AFHDS2A signal operation. 6 channel receiver compatible i4 i6 i10 transmitter. Digital receiver system. Quick and extremely stable in performance. Ultra light weight design.Easy to and fast link-up. Channels: 6 Channels Model type: Airplane / Glider / Helicopter Frequency range: 2.4--2.48GHZ Band width number: 140 Transmitting power: not more than 20dBm RF receiver sensitivity: -105dbm 2.4G mode: the second generation of an enhanced version of the automatic FM digital system Encoding: GFSK Antenna length: 26mm * 2 (dual antenna) Input power: 4.0-6.5V DC Dimension: 47 * 26.2 * 15mm Weight: 14.9g Color: Black i-Bus interface: Yes Data acquisition interface: Yes Package list: 1 x -iA6B Receiver 1 x plug Note:Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.