HS Code | Official Doc | Tariff Rate | Origin | Destination | Effective Date |
---|---|---|---|---|---|
8518104000 | Doc | 55.0% | CN | US | 2025-05-12 |
8518500000 | Doc | 55.0% | CN | US | 2025-05-12 |
8543708000 | Doc | 55.0% | CN | US | 2025-05-12 |
8543708000 | Doc | 55.0% | CN | US | 2025-05-12 |
8512300040 | Doc | 57.5% | CN | US | 2025-05-12 |
8512909000 | Doc | 57.5% | CN | US | 2025-05-12 |
8539900000 | Doc | 57.6% | CN | US | 2025-05-12 |
8513104000 | Doc | 33.5% | CN | US | 2025-05-12 |
8513904000 | Doc | 58.5% | CN | US | 2025-05-12 |
8531809041 | Doc | 37.5% | CN | US | 2025-05-12 |
8531809005 | Doc | 37.5% | CN | US | 2025-05-12 |
Wireless Microphone
A wireless microphone is a microphone without a physical cable that transmits audio signals to a receiving device. This allows for greater freedom of movement for the user.
Material
Wireless microphones are constructed from a variety of materials, typically including:
- Metal Housing: Often aluminum alloy or steel for durability and shielding.
- Plastic Components: Used for grips, buttons, and internal parts to reduce weight and cost.
- Electronic Components: Including a transducer (dynamic, condenser, or ribbon), a transmitter circuit, an antenna, and a power source (battery or rechargeable pack).
- Antenna: Usually made of copper or brass.
Purpose
The primary purpose of a wireless microphone is to capture audio without the restriction of cables. They are used in a wide variety of applications where mobility and convenience are important.
Function
A wireless microphone functions through the following process:
- Sound Capture: The microphone element (transducer) converts sound waves into an electrical audio signal.
- Transmission: The transmitter converts the audio signal into a radio frequency (RF) signal and broadcasts it via an antenna.
- Reception: A receiver picks up the RF signal through its antenna and converts it back into an audio signal.
- Output: The audio signal is then output to a sound system, recording device, or other audio equipment.
Usage Scenarios
- Live Performances: Singers, speakers, and musicians utilize them for stage performances.
- Public Speaking: Used in conferences, presentations, and lectures.
- Broadcasting: Employed in television, radio, and film production.
- Fitness Instruction: Instructors use them during classes for clear audio.
- Church Services: Pastors and speakers use them for sermons and announcements.
- Interviews and Reporting: Journalists and reporters use them for on-location interviews.
Common Types
- Handheld Microphones: The most common type, held by the user. Often used by singers and speakers.
- Lavalier Microphones (Lapel Mics): Small microphones clipped to clothing, providing discreet audio capture. Commonly used in broadcasting and presentations.
- Headset Microphones: Worn on the head, allowing for hands-free operation. Used by fitness instructors, performers, and presenters.
- Bodypack Microphones: Small transmitters worn on the body, typically used with various microphone types (lavalier, headset, instrument mics).
- Instrument Microphones: Designed to capture the sound of musical instruments.
- Conference Microphones: Designed for group discussions and meetings.
Frequency Bands
Wireless microphones operate on specific radio frequency bands, including:
- VHF (Very High Frequency): Older technology, prone to interference.
- UHF (Ultra High Frequency): More common, generally less prone to interference than VHF.
- 2.4 GHz: Becoming increasingly popular, operates on the same frequency as Wi-Fi.
- DECT: Used in some professional applications.
Considerations
- Interference: Radio frequency interference can disrupt the audio signal.
- Range: The distance between the microphone and receiver is limited.
- Battery Life: Wireless microphones require a power source, which needs to be monitored.
- Frequency Coordination: Ensuring the microphone operates on a clear frequency to avoid interference.
- Polar Pattern: The directionality of the microphone affects how it picks up sound (cardioid, omnidirectional, etc.).
Wireless microphones fall under the category of sound signaling equipment. Based on the provided reference material, the following HS codes are relevant:
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8518104000: This HS code covers microphones and stands therefor. Specifically, it includes microphones having a frequency range of 300 Hz to 3.4 kHz with a diameter not exceeding 10 mm and a height not exceeding 3 mm, for telecommunication use. Chapter 85 relates to electrical machines and apparatus; Heading 8518 covers microphones and loudspeakers; Subheading 8518.10 specifies microphones and stands, and 8518.10.40 further defines those for telecommunication use with specific frequency and dimension requirements.
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8518500000: This HS code also covers microphones and stands therefor, but more broadly includes electric sound amplifier sets. Chapter 85 relates to electrical machines and apparatus; Heading 8518 covers microphones and loudspeakers; Subheading 8518.50 specifies electric sound amplifier sets.
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8531809041: This HS code covers other apparatus within the category of electric sound or visual signaling apparatus, specifically other sound signaling apparatus. Chapter 85 relates to electrical machines and apparatus; Heading 8531 covers electric sound or visual signaling apparatus; Subheading 8531.80 specifies other apparatus; 8531.80.90 further defines other apparatus, and 8531.80.90.41 specifies other sound signaling apparatus.
Regarding HS code 8531809041, please note that it covers "other" sound signaling apparatus, so it's important to ensure the wireless microphone doesn't fall under a more specific classification within Chapter 85.
Regarding HS codes 8518104000 and 8518500000, the total tax rate is 55.0%, comprising a 0.0% basic tariff and a 25.0% additional tariff, increasing to 30.0% after April 2, 2025.