Four ring members are mounted between the upper and lower hemispheres of the Nexus Q. The top is a ball bearing, and metal balls are embedded between the resin frames, which is estimated to be able to smoothly rotate the volume knob. A toroidal metal weight is also embedded inside the hemisphere that acts as a volume knob. That is, the gray band portion inside the resin tooth introduced in the disassembly (3) is estimated to allow the user to feel moderate inertia when adjusting the volume. By taking these measures, the user does not have a "cheap" feeling when turning the volume knob. As far as personal feelings are concerned, there is still no "high-end sense". Next, it is a light guiding member for uniformly expressing light emitted from a plurality of LEDs on the outside. Below the light guiding member is a circuit board on which the LEDs are mounted. Below the board is a toroidal metal frame that is estimated to be used to securely hold components such as LED boards. The LED board is equipped with 32 color LEDs. The halo around the Nexus Q sphere changes color as the user operates, or flashes slowly. This kind of action is achieved through this board. The next step is to dismantle the lower hemisphere. After the power circuit board was removed, a circuit board with several large-size capacitors was installed, and the audio power amplifier IC "TAS5713" of Texas Instruments was installed. Since the board is connected to the speaker terminal at the rear of the fuselage through a cable, it is estimated to be a stereo amplifier circuit board. Using a dedicated amplifier board, this product is still very pursuit of sound quality, although the music played by this product is MP3 files for smartphones. The handheld addresser is used to program the address of the monitoring module offline. When in use, connect the two output wires of the handheld encoder to the communication bus terminal (terminal label 1, 2) of the monitoring module, turn on the black power switch on the right side upwards, and press "ten Add", [Subtract ten", [Add one place" and [Subtract one place" to program the address. Position Encoder,Magnetic Rotary Encoder,Hybrid Encoder,Channel Encoder Changchun Guangxing Sensing Technology Co.LTD , https://www.gx-encoder.com