Channels : 3 Model type : car/boat RF range : 2.4-2.48GHz Bandwidth : 500KHz Band : 160 RF power: less than 20 dBm 2.4G system : AFHDS Code type : GFSK Sensitivity : 1024 Low voltage warning : yes(less than 3.5V) DSC port : yes (USB; output: PPM) ST range : 90 TH range : 45(F: 30;B:15) Charger port : yes Power : 3.7V(800mAh) Weight : 262g ANT length : 26mm Size : 156*94*223mm Color : black Certificate : CE0678, FCC