Abstract: A headphone includes a headgear and two earmuffs connected to opposite ends of the headgear, and each of the earmuffs includes an adjustment assembly. The adjustment assembly includes a base, two elastic members, two protrusions, and two sliding blocks. The base has two opposite accommodating parts and two guiding grooves. The elastic members are disposed in the accommodating parts, respectively, and the elastic members extend along a first axial direction. The protrusions are slidably connected to the guiding grooves, respectively, and protrude into the accommodating parts. The sliding blocks are disposed in the accommodating parts, respectively, and each of the sliding blocks is respectively connected between the corresponding protrusion and the corresponding elastic member.

Abstract: The present invention is an electrical signal computing module capable of accommodating printed circuit board, able to lead the exterior air into the main case body, exchange heat with the printed circuit boards, without accumulation of heat and damage of the printed circuit board. The present invention has a main case body with a bottom case and an internal board set, and four accommodating areas are formed by the internal board set and a transmission circuit board, in addition, numerous flow holes disposed at specific position are designed for air flowing in, exchanging heat produced by printed circuit boards as well.

Abstract: The present invention is an electrical signal computing module capable of accommodating printed circuit board, able to lead the exterior air into the main case body, exchange heat with the printed circuit boards, without accumulation of heat and damage of the printed circuit board. The present invention has a main case body with a bottom case and an internal board set, and four accommodating areas are formed by the internal board set and a transmission circuit board, in addition, numerous flow holes disposed at specific position are designed for air flowing in, exchanging heat produced by printed circuit boards as well.

Abstract: A radio frequency coaxial adaptor includes a housing having an end portion to engage a mating connector, a contact member mounted to the housing and moveable in a reciprocating manner relative to the housing, and a conductor coaxial with the housing and having a first end portion and a second end portion. The first end portion extends within the contact member, and the second end portion extends within the end portion of the housing for electrically engaging the mating connector.

Abstract: An electrical connector includes an insulating body, an inner flexible plug, two metal housings and a flexible cable. The insulating body includes a base, two side portions set on two opposite sides of said base respectively and a top board connected between the side portions. A plurality of terminal grooves is defined in the base. The inner flexible plug is combined in the insulating body. The metal housings cover the insulating body. The flexible cable is set between the insulating body and the inner flexible plug. The inner flexible plug defines a plurality of receiving slots corresponding to the terminal grooves. The receiving slots extend from top side of the inner flexible plug to its bottom side in a bent way thus the flexible cable can be electrically connected with electrical connecting terminals set in the terminal grooves. Therefore, the electrical connector is easily assembled and has a stable structure.

Abstract: An electrical connector includes an insulating main body, a metal shell and a flexible bus line. The insulating main body includes a base portion and two side portions. The front edge of the base portion has a jointing portion, and the jointing portion has slots. The flexible bus line is clipped between the insulating main body and the metal shell. At the middle of the flexible bus line, there are a plurality of naked metal conducting lines. The metal conducting lines are located in the corresponding slots of the jointing portion, and each of two ends of each metal conducting line forms a contacting portion. The flexible bus line is bent backwards so that the contacting portions are respectively located at the opposite sides of the jointing portion. Thereby, the naked metal conducting line of the flexible bus line is used as a medium to electrically connect a jointed connector.