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5pcs DIY 3-Tube Wireless Microphone Kit Wireless Microphone Module Electronic Manufacture Kit
Description: This suite converts sound signals into radio signals, and restores sound to another place by wireless means using a normal FM radio. It is interesting and can also learn electronic technology to improve practical ability. The following are common uses: wireless microphones, wireless broadcasting, wireless hawking, radio electronics, doorbell and so on. The frequency range is 80MHZ-108MHZ (adjusting the L1 coil turns to change the frequency) Working voltage: 3V-9V Circuit board size: 5.1 x 2.6MM Radius of emission: 100 meters (ordinary radio, antenna 50CM long thin wire, can be adjusted to the distance of about 15 meters) Package Included: 5 x DIY 3-Tube Wireless Microphone Kit