For FlySky FS-A3 Reliable, interference free 2.4GHz 3CH receiver. Suit for GT2E GT2G transmitter. Quick and extremely stable in performance. Ultra light weight design. Specifications: Channels: 3 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 Input power: 4.0-6.5V DC Color: Black i-Bus interface: Yes Data acquisition interface: Yes Dimension: 35 * 20 * 13mm(not including cable length) Cable length: 173mm Net Weight: Approx. 7g Package weight: 9g