... 20 speed:1-20km/h 3.running belt:505x3055mm 4.commercial use new commercial sport GV-5050ACFeatures: 1. Low noise DC motor: ... , 99programs, 3user defined programs, with 2 speakers, amplify and MP3 connection 6. With hand pulse, With hand switches, 7. Assembly size ... waxed phenolic 11. Shock Absorption: 8-point deck suspension. With additional incline suspension structure, it makes the running stage ...