Self powered. Fixed elevation. Elevation position 4%. 5 function lcd exercise monitor with calories (theoretical calorie burn), distance (miles), scan, speed (mph) and time (minutes / seconds) modes. Foldable for convenient space saving storage. Transportation wheels. Maximum user body weight 100kg / 15.7st. Gross weight 23.7kg. Belt size (centre of roller to centre of roller) (W)32, (L)102cm. Running surface (W)32, (D)102cm. Assembled size (H)122, (W)61, (D)111cm. Requires 1 x AA battery, not included. Home assembly required.