1. Feature: - High-definition digital tube display frequency, making operation more easy and convenient. - The built-in battery can be used with repeated charging, and it is light in weight and safe to use. - A single charge can allow use for more than 10 hours, with long battery life. - There is no limit on amplification products; mainly, it can accept FM radio signals and electronic equipment with audio playback function can be instantly used as a megaphone. - Small and exquisite, portable, with amplification function available anytime and anywhere. - Widely used: teaching, tour guide, sales promotion, lectures, meetings, karaoke, fans singing and so on. - FM Wireless Microphone Headset only; other accessories demo in the picture are not included! 2. Specifications: - Item Type: FM Wireless Microphone Headset - Size: 14x4x17cm/5.5x1.5x6.6in - Color: Black - Resistance: 680Ohm - Sensitivity: -52dB1.5dB - Wireless Distance: 15-20m/49-65in - Transmission Frequency: 87Mhz-108Mhz - Quantity: 1 Pc 3. Operating Steps: - 1. Switch on the main power supply of the microphone, and the Screen will display the 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 does not exist in local radio frequency bands, for example 89.7.) - 3. Turn on the machine with FM radio function, stretch the antenna and tune to FM radio mode, tune the radio frequency to the same as the displayed number. And you can use the Wireless microphone after the machine matches the radio frequency. - 4. Put the Microphone on your head and speak into the microphone, you can amplify your voice. 4. Note: - Transition: 1cm=10mm=0.39inch - Please allow 0-1cm error due to manual measurement. Please make sure you do not mind before you bid. - Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! 5. Package Includes: - 1 x FM Wireless Microphone Headset - 1 x Charging Cable - 1 x User Manual