10W Voice Amplifier for Teachers Megaphone AUX Audio Sound Speaker Recording FM Radio With Wired Microphone Tour Guide ,Loud Sound

1. Output Power: 10W 2. Charging Voltage: DC 5V, 500mAh 3. Lithium Battery: 3.7V, 1800mAh 4. Working Time: 4~6 Hours (Musical Mode); 7~8 Hours (Wired Mic Mode) 5. Charging Time: 3~4 Hours 6. Product Size: 11cm*8cm*3.6cm 7. Unit Weight: 270g 8. Available Color: Black 9. Working Temperature: -10~45 10. Frequency Response: 200Hz~18Khz 11. Sound Coverage: 800~1000 Work As Speaker; Standard Package: 1 * Main Machine 1 * Waistband 1 * Microphone 1* USB Cabel 1* Charging Adapter 1 * User Manual Related Products:voice amplifier for teachers,classroom microphone for teachers,portable microphone and speaker,voice amplifier wireless microphone,portable speaker with microphone,microphone and speaker