When sound waves come into contact with air it causes a dissipation of the waves, and so a special ultrasound gel is placed on the skin to ensure maximal contact between the treatment head and the surface of the skin and to provide a medium through with the sound waves can travel.
To delete your data from the Band and Microsoft Band, follow these steps: 1  Step 1: On your Band, tap Settings Tile > Power 2  . Step 2: Swipe left, tap Reset Device, and tap Yes when asked if you want to erase all data. 3  Step 3: Open the Microsoft Band app, and tap Menu î > My Microsoft Band > Unregister your Band.
Delete a file from your Dropbox. To delete a file from your iPhone, all of your computers, and devices simultaneously: 1  From the screen listing all of your files, tap on the downward arrow beside the file name to bring up the actions menu. 2  Select Delete. 3  Youâll be prompted to confirm your choice to delete the file.