| HS Code | Official Doc | Tariff Rate | Origin | Destination | Effective Date |
|---|---|---|---|---|---|
| 8518104000 | Doc | 55.0% | CN | US | 2025-05-12 |
| 8518108040 | Doc | 37.5% | CN | US | 2025-05-12 |
| 8531809041 | Doc | 37.5% | CN | US | 2025-05-12 |
| 8531809051 | Doc | 37.5% | CN | US | 2025-05-12 |
| 8512909000 | Doc | 57.5% | CN | US | 2025-05-12 |
拾音棒
拾音棒 (shí yīn bàng), commonly known as a microphone, is a device that converts sound waves into electrical signals. These signals can then be amplified, recorded, or transmitted.
Material:
- Diaphragm: Typically made of materials like Mylar (polyester film), metal, or ceramic, chosen for their sensitivity and responsiveness to sound vibrations.
- Transducer: The core component converting mechanical energy to electrical signals. Common types include:
- Dynamic: Utilizes a moving coil suspended in a magnetic field. Robust and suitable for high-volume sources.
- Condenser: Employs a capacitor that varies capacitance with sound pressure. Offers high sensitivity and wider frequency response. Requires external power (phantom power or batteries).
- Electret Condenser: A type of condenser microphone with a permanently charged diaphragm, simplifying power requirements.
- Housing: Often constructed from metal (steel, aluminum) or durable plastic to protect internal components and reduce noise interference.
- Cable/Connector: Typically XLR, USB, or 3.5mm connectors for signal transmission.
Purpose:
The primary purpose of a microphone is to capture audio for various applications.
Function:
Sound waves cause the diaphragm to vibrate. This vibration is then converted into an electrical signal by the transducer. The strength of the signal corresponds to the intensity of the sound.
Usage Scenarios:
- Recording: Studio recordings (vocals, instruments), field recordings, podcasting.
- Live Performance: Vocal amplification, instrument amplification, public address systems.
- Broadcasting: Radio, television, voiceovers.
- Communication: Telephony, video conferencing, gaming.
- Measurement: Sound level meters, acoustic analysis.
Common Types:
- Dynamic Microphones:
- Shure SM58: Industry standard for live vocals. Rugged and reliable.
- Sennheiser e609: Designed for guitar amplifiers.
- Condenser Microphones:
- Neumann U87: Highly regarded for studio vocal recordings.
- Rode NT-USB: Popular USB condenser microphone for podcasting and streaming.
- USB Microphones: Convenient for direct digital recording.
- Lavalier Microphones (Lapel Mics): Small microphones clipped to clothing for hands-free recording.
- Shotgun Microphones: Highly directional microphones used for capturing sound from a distance.
- Headset Microphones: Combines a microphone and headphones for communication and gaming.
- Ribbon Microphones: Uses a thin metal ribbon suspended in a magnetic field. Known for their warm, natural sound.
拾音棒，根据其材质、用途和应用场景，通常指用于录音、扩音或通信的麦克风。以下是根据提供的参考资料，可能相关的HS代码：
-
8518.10.40.00: 麦克风及麦克风支架；扬声器，无论是否安装在外壳内；耳机及耳麦，无论是否与麦克风组合，以及由麦克风和一个或多个扬声器组成的套装；音频频率电放大器；电声放大器套装；其零件：麦克风及麦克风支架：频率范围为300 Hz至3.4 kHz，直径不超过10 mm，高度不超过3 mm，用于电信用途的麦克风。
- 85: 电气设备及其零件。
- 18: 声音记录或重放设备，声音或图像传输设备，录音或重放设备。
- 10: 麦克风及麦克风支架；扬声器。
- 40: 频率范围为300 Hz至3.4 kHz，直径不超过10 mm，高度不超过3 mm，用于电信用途的麦克风。
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8518.10.80.40: 麦克风及麦克风支架；扬声器，无论是否安装在外壳内；耳机及耳麦，无论是否与麦克风组合，以及由麦克风和一个或多个扬声器组成的套装；音频频率电放大器；电声放大器套装；其零件：麦克风及麦克风支架：其他。
- 85: 电气设备及其零件。
- 18: 声音记录或重放设备，声音或图像传输设备，录音或重放设备。
- 10: 麦克风及麦克风支架；扬声器。
- 80: 其他麦克风。
根据提供的参考资料，关于HS代码8518.10.40.00，请注意其频率范围、直径和高度的限制，以及其特定的电信用途。如果拾音棒不符合这些条件，则应考虑HS代码8518.10.80.40。