Description:The appearance is generous the display is a large 2.4-inch screen 5-layer display s simple and stylish full-screen background light touch buttons simple and convenient operation; common for mountain bikes road bikes folding bikes and other round spokes battery capacity is 550 Milliampere 3 times that of ordinary batteriesSpecifications:Large screen displaydata storageReal-time temperatureFull screen backlightProduct Name: YS Touch Control Code TableWeight: about 70G (without pack)Battery: 2450 button batteryConfiguration:Head*1Base*1Sensor *1Inductive head*1Cable tie*1Package Included:Head*1Base*1Sensor *1Inductive head*1Cable tie*1Notes:Key points of using the stopwatchHardware Refer to the icon and manual described by the baby. Note: The distance between the magnet and the sensor is controlled by about 4MM. 2. The data setting operation method refers to the manual.Note: Whether the speed is displayed by the stopwatch is accurate the key is whether the wheel diameter setting is accurateReference wheel diameter Certification:CE Origin:CN(Origin)