12W Portable Voice Amplifier U-Disk Megaphone Microphone Mp3 Player Speaker For Classroom Teachers Lecture Tour Guide ,Loud Sound

Portable Voice Amplifier Megaphone Mini Audio Speaker With Microphone Rechargeable Ultralight Loudspeaker For Teachers Feature: This Voice Amplifier is a multifunctional portable loudspeaker with sound-amplifying, digital music playing function. Imported high-power amplifier chip and advanced off-fidelity amplifier master control. Using high-power speakers, this sound effect is clear and loud, covering a wide range of transmission. High capacity, high safety, class A 18650 lithium battery. Note: 1. In order to achieve the best sound amplification, place the microphone head 1cm in front of the mouth and speak at the microphone head; 2. If there is a howling, please turn down the volume and pull the machine and the microphone away to prevent interference; 3. It is recommended to charge the battery after using up. If it is not used for a long time, it should be charged once a week. Specification: Output power: 12W Charging voltage: DC 5V 1A Use music time: 6-8 Hours Frequency response: 50Hz-15000Hz Working temperature:-10~45 Use of amplification:6-8 Hours Charging time: 4 Hours Package Include: 1 x Black Voice Amplifier 1 x Wired Microphone Headset 1 x Waistband 1 x USB Cable 1 x 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 speakerYou may also like S628 Megaphone Portable Voice Amplifier Mini Loudspeaker Booster Speaker for Teaching Tour.