Voice Amplifier with Headset Microphone and Waistband, Portable Rechargeable Mini PA Bluetooth Loud Speaker Support MP3 Format Audio FM for Teachers, Coaches, Tour Guide, Presentation, Yoga

NEWGOOD portable voice amplifier is The best gift for teachers,coaches,tour guides, Trainers and the eldly. Long last time- up to 38 hours standby time, clearly and powerful sound is perfect for Karaoke, teaching, sales promotion, training?tour guiding, outdoor activity
Features:
Output power: 10w
Frequency response: 90Hz-19KHz
Charging Voltage: DC 5v
Material: ABS
Battery: 1500mA
Size: 4.17x1.5x3.5 inch
Amplification of using time: up to 38 hours
Charging time: 3hours
Package:
1 X bluetooth voice amplifier
1 X Adjustable waistband
1 x 3.5mm audio cable
1 X Headset Microphone
1 X USB cable
1 x User Manual
1 x instruction book,online Video explanation