Microphones, also known as microphones, are microphones. A microphone is an energy converter device that converts sound signals into electrical signals. There are two types of microphones now, one is wired and the other is wireless. When we go to KTV, we use wireless microphones, which are not limited by wires and are very convenient. However, the transmission distance is limited by signals, so some large stages still use wired microphones. The testing standards and fees for CE certification vary depending on the functionality of the microphone. Let's take a look at the CE certification standards for microphones
CE certification testing standards for wireless products such as microphones:
1. General requirements for the EMC part of EN301489-1 wireless products.
2. Special requirements for the EMC part of EN301489-3CE certified wireless short distance products. Products such as 433.92MHz wireless doorbells 3. Special requirements for the EMC part of EN 301489-7 CE certified wireless products with GSM functionality. Products such as GSM mobile phones 4. EN301489-17 General requirements for the EMC part of CE certified broadband modulation products. Like Bluetooth headphones, tablets with WIFI function 5. The detection standard for wireless short distance products with frequencies within the range of 25-1000MHz and power less than 500mW in EN300220-1/-2CE certification. Products such as 433.92MHz wireless doorbells 6. Testing standards for wireless short distance products with frequencies within the range of 9KHZ~25MHz in EN300330-1/-2CE certification. RFID products such as 13.56MHz 7. EN300440-1/-2CE certification for testing standards for broadband modulation products other than Bluetooth and WIFI. For example, 2.4G game remote controllers using FSK modulation, but it must be noted that for those using frequency hopping technology (FHSS)Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China