FM radio with USB, TF plug-in wired/wireless amphibious amplifier HongYun HY-EM8
Product description:

use for: morning exercise, teaching, outdoor activities, scenery, commentary, shopping mall, at the auction, the streets, squares, speech activities, exhibitions
Will, will, seminars,,, sound amplification, and may also be external U disk, TF card MP3 music played directly, can show the lyrics
(multilingual), can be used as a computer speakers, mobile phone speakers, usb speakers, take the radio function, can be external earphone and microphone,
High bass adjustment, take reverb.

performance parameters
Power supply: AC 200 V frequency 50 Hz, the built-in 7.4 V 1800 mAh lithium battery and charging function design, battery protection circuit design.
Output power: 30 W (peak power)
Frequency range: VHF 180-270 MHz
transmitter power: 30 mW (maximum)
Operation scope: 35 M
Horn: 4 inches all the compass speakers
Charging time: 3-5 hours (automatic charging management)
Working hours: batteries can reach 6-8 hours (depending on the volume and environmental temperature)
Input interface: USB, TF card interface, audio input port, the microphone input port, headphones/audio output.
size: 115 x65x160mm
Weight: 500 G
Color: black.

Include: one amplifier,one headset mic, one pockets transmitters ,two ordinary number 5 battery , one power line,one remote control,one belt, one descification,  one certification.one gaurantee.