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.
3. Press and hold the name of the contact you want to delete (for Android 4.1 or 4.2 Jelly Bean). Hold your finger on the contact's name for a couple of seconds, until an action menu appears. The menu should list options like Edit, Delete, Join Contact, Share contact via, and Add to reject list. Find Delete.