The speed range of the independent underwater treadmills is 1 KM/ H to 8 KM/ H , speed of the underwater treadmill is controlled by the frequency converter in the hydraulic station , which is suitable for different courses and the sports needs of members . The detachable wireless Bluetooth control panel is the technical highlight of the underwater treadmills , it can provide wireless charging and wireless Bluetooth remote control underwater treadmill , which is convenient for trainer to stay on the shore of the swimming pool and train the students to do training underwater.