Specifications: 1 Channels:3 Channels; 2 Model type:car/boat; 3 RF range:2.40-2.48GHz; 4 Bandwidth:500Hz; 5 Band:160; 6 RF power:less than 20DB; 7 2.4G system:AFHDS; 8 Code type:GFSK; 9 Senditivity:1024; 10 Low voltage warning:yes(less than 9V) 11 DSC port: yes(3.5mm:output:PPM); 12 ST range:90; 13 TH range:45(F:30;B:15); 14 Charger port:yes; 15 Power:12V DC(1.5AA*8); 16 Weight:328g; 17 ANT length:26mm;