Abstract: A headphone is disclosed that includes left and right receivers each including an outer housing, an inner housing secured to the outer housing by snapping, a first disk, a second disk, a speaker, and a clapper wherein the first and second disks are mounted in a space formed by the inner and the outer housings, and the speaker and the clapper are mounted in a space formed by the inner housing and the second disk; a swivel microphone secured to an outer surface of either receiver by snapping; and a band having both ends secured to the left and right receivers by snapping. It is possible of quickly fastening or unfastening components of the headphone.

Abstract: A headphone includes left and right receivers each including an elongate shell including a peg projecting inwardly from either end; a housing shaped to conform to the shell and including a peripheral wall, a slot in either end, the slot adapted to securely engage with the peg, a first receiving space at one portion, a second receiving space at the other portion in communication with the first receiving space, and a plurality of bottom holes; a speaker mounted in the first receiving space; a plurality of buttons including a volume button mounted on a bottom of the second receiving space; and a cap fitted on the second receiving space; a band having both ends secured to the caps; and a swivel microphone secured to an outer surface of either receiver. Additional components (e.g., battery) can be mounted in the second receiving space.

Abstract: An improved structure of a golf bag is disclosed. The golf bag includes a pulling shaft device and a roller device located at an appropriate position on the bag. The roller device can be dissembled from the bag body and the pulling shaft device is mounted at a mounting cylinder provided to the bag body. Screw nuts and a U-shaped clipping member are used to mount the roller device onto the bottom section of the golf bag, thereby, the golf bag can be easily and conveniently dragged to move by extending the shaft device to an appropriate length for pulling.