Specification:Body: 46*46*20mm  Screen: 24*28mm  Weight:100g15 Functions: -  SPD   Current Speed.-  ODO   Odometer-  DST   Distance of Single trip.-  MXS   Max Speed.-  AVS   Average speed.-  TM    Time of Ride.-  CLK  （12H/24H）/ Clock.-  SCAN  -  “+” “－”