Bluetooth UHF Wireless Voice Amplifier Portable For Teaching Lecture Tour Guide Promotion U-Disk Megaphone Microphone Speaker Bluetooth UHF Wireless Voice Amplifier Portable For Teaching Lecture Tour Guide Promotion U-Disk Megaphone Microphone Speaker Features: Black iron mesh, high-gloss shell, in the box paint, after the shell matte. Sound big, good sound quality A key recording, FM radio Large capacity lithium battery long life Standard wired microphone 20 meters wireless PA, no need to carry a heavy loudspeaker, directly on the podium, the desk, just with a wireless wheat can be easily amplified High sensitivity microphone, no noise, 15W high power, large classroom conference room relaxed PA. 15W loudspeaker + 7.4V high voltage, zoom in decibels High-sensitivity microphone, digital smart microphone chip to bring digital noise reduction, combined with the fuselage comes with noise reduction function, through different decibels intelligent judgment to reduce noise. Lasting battery life, built-in high-capacity lithium battery, charging 4-6 hours, sustainable use 12-15 hours. A key recording, recording need to insert TF card or U disk. A variety of interfaces complete, support U disk read, mobile phone playback, TF card reader, radio function, connect the computer to play, recording function. Loop play, play music, long press M key for 3 seconds, you can achieve single cycle / all the two modes of switching cycle. Standard tone screen line, you can insert the body AUX jack, and then connect the computer or mobile phone to do small speakers. Standard belt, body design with a belt hanging hole, can be linked to the back, portable. Widely used:teaching, training, tour guides, conferences, promotions and other occasions and stations, hospitals and banks and other units. _x000D_