20W Voice Amplifier Booster Microphone Mini Portable Megaphone Speaker With Usb Audio Recording

Professional voice amplifier; ECHO makes the better voice quality.

USB disk,TF card auto music playing.

Features clear LED display screen.

Fashionable color for option.

22000mAh lithium battery, makes its working and standby time longer.

 

Teaching expansion, tour guide, outdoor promotion.

Large volume, no noise, no effort lectures

Music player: support TF card inserted U disk

Recording mode: live recording, live broadcast

Outdoor promotion: loop play, repeat play

Radio function: FM radio function

Application fields: Teaching, speech, tour guide, exercise coach, promotion, music and outdoor activity

FM radio frequency: 87MHZ-108MHZ

Charger: DC5V / 500mA

Battery voltage: 3.7v/2200mAh

Amplify time: >20hours

Charging time: 4-6hours

Output wattage: 20W

Speaker impedance: 4 Ohm

Frequency response: 100Hz-13,000Hz

Music support: MP3,WAV,WMA

SNR: 80dB

Product dimension: 100*80.5*38mm

Product weight: 215g

 

Package includes.