Abstract: A conduction receiver utilizing sound transmission through a solid medium includes an outer casing, a vibration reed, a magnet, a washer, a coil, and a lid. The lid covers surfaces of the outer casing to form a sealed first receiving space. The vibration reed, the magnet, the washer, and the coil are all arranged in the first receiving space. A peripheral surface of the vibration reed is coupled to the outer casing. The magnet is arranged at a side of the vibration reed away from a bottom of the outer casing. The washer is arranged at a side of the magnet away from the vibration reed. A first end of the coil is fixed to an inner surface of the lid, and a second end of the coil extends into the first receiving space and is coiled around the magnet and the washer. An electronic device is also provided.

Abstract: A T-shaped fan blade arm attachment is disclosed for securing ceiling fan blades to a rotor of a ceiling fan motor. The fan blade arms have T-shaped ends with an elastomeric ring disposed adjacent the T-shapes ends. A mounting bracket has mounting holes with opposed slots for receiving the T-shaped ends of the fan blade arms. The opposed slots are preferably aligned at an angle to the horizontal when mounted to a ceiling fan motor. The mounting bracket has a flat surface exteriorly disposed on the mounting bracket adjacent to respective ones of the mounting holes. The mounting bracket has two cams with lock grooves disposed on interior surfaces of the mounting bracket, adjacent to respective ones of the mounting holes. The T-shaped ends insert into the mounting holes and are rotated to guide the T-shaped ends of the fan blade arms into the lock grooves.

Abstract: A contact type electret condenser pickup to deliver high anti noise, top talking quality, and comprehensive range of applications includes a casing provided with an accommodation chamber to contain an O-ring, a vibration part, an insulation packing, a back plate retaining ring containing a back plate, a conductive connection ring, and a circuit board horizontally placed in sequence; vibration of a sound of a user is transmitted to the vibration part; then an inertia vibration of the metal sheet changes capacitance between the vibration part and the back plate; the changed vibration is converted through the circuit board set into voltage of alternating signals for output variable according to changes of vibration.

Abstract: A contact type electret condenser pickup to deliver high anti noise, top talking quality, and comprehensive range of applications includes a casing provided with an accommodation chamber to contain an O-ring, a vibration part, an insulation packing, a back plate retaining ring containing a back plate, a conductive connection ring, and a circuit board horizontally placed in sequence; vibration of a sound of a user is transmitted to the vibration part; then an inertia vibration of the metal sheet changes capacitance between the vibration part and the back plate; the changed vibration is converted through the circuit board set into voltage of alternating signals for output variable according to changes of vibration.