ITEM NAME:RadioFM Wireless Headset Microphone Handsfree Megaphone Mic for Loudspeaker A#S Product Description Description: Features: 1. High-definition digital tube display frequency, makes operation more easy and convenient. 2. The built-in polymer battery, not only can be used repeatedly charging, and light weight use safety. 3. A single Charge , can always use more than 10 hours, long battery life! 4. Super multi-channel optional, will not interfere with each other 200 optional channel! 5. There is no limit on the amplification products, mainly to accept FM radio signals and electronic equipment with audio playback function can be used instantly into a megaphone. 6. Small and exquisite, portable, amplification function anytime and anywhere. 7. Widely used: teaching, tour guide, sales promotion, lectures, meetings, karaoke, fans singing and so on purpose. 8. The use of a single wireless FM microphone, can make two hundred loudspeaker devices and public address broadcast at the same time, think about what the situation. 9. Emission frequency display clearly. When worked, Display will go out automatically that save energy for you. 10. Delicate appearance, comfortable hand feeling, the key"+", "-"can not only regulate frequency but can adjust volume. 11. High sensitive microphone head design, with high pickup sound effect. Specifications: Color: Black Transmission frequency: 87.5 Mhz to 108Mhz Sensitivity: -39dB  ± 1dB Batarry capacity: 230mA Voltage: DC 5V Emission frequency: 87.5MHz~108MHz Charging time: 1~2hours Output resistance: ≠¤68 Ohm Operationg voltage: DC 3.3V-5V Effective distance: 10m/32.8feet Operating time: 5-6hours Product size: approx. 180*135*25mm/7.08*5.31*0.98'' Net weight: approx. 35g Operating Steps: 1. Switch on the main power supply of microphone, and the Screen will display radio station band number. 2. Press the"+" "-" key to adjust the radio frequency, and choose a band number between 87.5MHz~108MHz. (Note: Select the number that it dose not.High sensitive microphone head design, with high pickup sound effect. And you can use the Wireless microphone after the machine matching pair with the ratio frenquency. Sensitivity: -39dB  ± 1dB. Put the Microphone on your head and speak into the microphone, you can amplificate your voice.
