Professional power teaching Amplifier USB TF card to play music waistband amplifier amplifer with microphone

Professional power teaching Amplifier 

Key Specifications:

Output power : 10W maximumPower supply  : lithium rechargeable batteryVoltage            : DC  5V   3.7V-Li battery with 2000mAhSpeaker            : 3-inch 4Ω with high quality magnet Color                 : Yellow/Black/red/white colors availableMaterial            : ABS housingFrequency response : 100Hz-13KHz±3dBSpeaker sensitivity    :0.5-10mVFM Frequency:FM87.5 – 108 MHz

Function:

  MP3/audio playback  Headset microphone  USB/SD card  FM Radio

Components:

 USB cable for recharging Headset microphone 3.5mm/3.5mm cableWire waistband User manualWarranty card2000mAh Li-ion battery (built-in)

Professional power teaching Amplifier