| 摘要 |
PURPOSE: A bar shaped case for mobile devices is provided to multiply telephone sound quality and media sound amplifying effects. CONSTITUTION: A bar shaped case for mobile devices covers the side of a bar shaped mobile device(500) in which a speaker or microphone is arranged. In the inner surface of the case which is corresponding to a part in which the speaker or microphone is placed, sound improving grooves(50) with open front and upper sides are formed. On the bottom surface of the sound improving grooves, protrusions facing the front side are arranged leaving a predetermined interval along the horizontal length direction. The connection part comprises a holder function which assembles or decomposes a strip-shaped frame. |
