Features: Reliable, interference free 2.4GHz AFHDS 2A signal operation. 6CH operation. Use only 4 * AA batteries for transmitter. Quick and extremely stable in performance. Simple binding procedure. Transmitter Specfications: Channels: 6 Model type: fixed-wing/glider/helicopter RF range: 2.405-2.475GHz Bandwidth: 500KHz Band: 142 RF power: less than 20dBm 2.4G system: AFHDS 2A and AFHDS Code type: GFSK Sensitivity: 1024 Low voltage warning: less than 4.2V DSC port: PS2; output: PPM Charger port: no ANT length: 26mm * 2(dual antenna) Power: 6V 1.5AA * 4 Display mode: Transflective STN positive type, 128 * 64 dot matrix VA72 * 39mm, white backlight. Size:174 * 89 * 190mm Weight: 392g Online update: yes Color: black Receiver Specifications: Channels: 6 Channels Model type: Airplane / Glider / Helicopter Frequency range: 2.4--2.48GHZ Ban