2012, Stealth, Pantech
STEALTH is a 4.5 inches smartphone, its design copied from the shape of USA combat Stealth. It has 4 channels surround speaker concept. The angular shape of its backside helps the sound come out through the side of the phone when the phone is put on the table.
The front window is made of 3D galss. Receiver is jutted to protect 3D glass. Variation of surfaces with triangle patterns. The sound is not distorted even when the phone is on the table because the sepaker hole is still not covered by the bottom thanks to the angular design.