1,Length of the cable:1500mm 2,Voltage:24V and 36V 3,Function:total mails,battery indicator, speed limiter, 5PAS level Function: battery indicator 89*48*52mm PAS level 1-5 MAX/AVG speed ODO/trip distance ODO/trip time Remain distance(12 C version) Wheel size/time/max speed/backlight Set up communication protocol:PS232/T2C Size: 74*54*45mm electric bike motor speed indicator LCD dispaly