Abstract: A data processing device includes a base plate and an electronic module. The base plate includes N driving portions. The electronic module includes an electronic component, a tray and a recognition mechanism. The tray is configured to support the electronic component and includes N slots. The tray is disposed on the base plate, such that an i-th driving portion of the N driving portions is disposed in an i-th slot of the N slots. The recognition mechanism is disposed on the tray. The recognition mechanism includes N interfering portions and N receiving recesses. When the tray moves with respect to the base plate toward a first direction, the i-th driving portion moves within the i-th slot toward a second direction to push an i-th interfering portion of the N interfering portions to move, such that the i-th interfering portion extends into an i-th receiving recess of the N receiving recesses.

Abstract: A device with lock function includes a housing, a casing and a lock mechanism. The housing has a first engaging portion. The lock mechanism includes a frame, a lock member, a first elastic member, an operating member and an unlock member. The frame has a second engaging portion. The lock member has a third engaging portion engaging with the first engaging portion to lock the casing in the housing. The unlock member has a fourth engaging portion engaging with the second engaging portion to restrain the operating member. When the unlock member is pressed, the fourth engaging portion disengages from the second engaging portion and the first elastic member drives the lock member to move toward an inside of the frame, such that the third engaging portion disengages from the first engaging portion and the lock member drives the operating member to move toward an outside of the frame.

Abstract: A massage stick includes a rod, a massage tube, two tube stoppers, two handles and two heads. The rod extends through the massage tube and each tube stopper is fixed on one end of the rod. Each tube stopper has a step in a hole thereof. The two handles are mounted to two ends of the rod and each has a passage in which two shoulders and a contact face are formed. The two heads are respectively connected to the two handles, and each has a shank and a massage end. The user may hold the handles and roll the massage tube to massage the body. Alternatively, the user may hold the massage tube and roll the handles to massage the body. The user may hold the handles or the massage tube, using the massage ends of the heads to massage the body.

Abstract: A massage stick includes a rod, a masssage tube, two tube stoppers, two handles and two heads. The rod extends through the massage tube and each tube stopper is secured on the rod. Each tube stopper has a first shoulder in the hole thereof. The two handles are mounted to the two sides of the rod and each has a second passage in which second shoulders and a contact face are formed. The two heads are respectively connected to the two handles, and each has a shank and a massage end. The user holds the handles to massage the body by rolling the massage tube. Alternatively, the user holds the massage tube to massage the body by rolling the handles. The user may hold the handles or the massage tube to massage the body by pressing the massage ends onto the body.