Patent ID: 7577465

Claim:
A slidable Bluetooth earphone, comprising: a main body, having a first body in which there is an accommodating space, the accommodating space having a sound transmission device mounted inside thereof, a pair of positioning pieces being oppositely protruded from both lengthwise sides of the first body, a second body being formed at a front end of the first body, a resilient arm being formed at each opposite side of the second body and extending backward to the positioning piece, a flange being formed on a bottom of the resilient arm, and a sliding mechanism being mounted between the first body and the second body; a pressing element, mounted on the first body, wherein a stopping piece extends downward from the pressing element along each lengthwise side of the first body; two rotating pieces, respectively pivotally connected to the sides of the first body, wherein a first rotatable arm extends forward from a front end of the rotating piece and is located under the resilient arm, and a second rotatable arm extends backward from a rear of the rotating piece and is located just under the stopping piece and in the movement path of the pressing element; and a connector, having a main axis penetrating the first body, wherein a stopping rod extends from each end of the main axis and is located between the stopping piece and the second rotatable arm; wherein a retainer is formed on at least one side of the first body and moves relative to the first body, a retaining face is formed on a bottom of the retainer in a manner that the retaining face coming close to the resilient arm as the retainer slides over an upper end of the resilient arm which is located on the same side as where the retaining face is formed; and, a positioning rib is formed on one side of the first body, and at least two slots are formed opposite to the first body but corresponding to the positioning rib, as soon as one of the slots comes to engage with the positioning rib, the retainer is positioned at an upper end of the resilient arm to drive the retaining face to be close to the resilient arm, and as soon as the second slot comes to engage with the positioning rib, the retainer departs from the upper end of the resilient arm so as to drive the retaining face to depart from the resilient arm.