NORWII S358 Portable 4000mAh Rechargeable Voice Amplifier with Wired Microphone Headset Waistband Personal Microphone and Speaker for Teachers Tour Guides ect Black

?Small Size and Big Volume?-- ?It is a Professional Voice Amplifier with 3 inches powerful magnetic loudspeaker. Compact size (4.9 x 1.9 x 3.6 inches) and light weight (0.56 lb). ?The max 10 watts sound can cover about 10000 sq. ft (1000 ?). More advanced sound sensitivity and more sound penetration. The sound of microphone amplifier is clear, crisp, no noise and no distortion., ?Long Battery Life?-- ?Double power, built in 4000mAh rechargeable lithium battery. It provides 36-40 hours keep using, only needs 3-5 hours to fully charge it. ?This mini voice speaker with microphone headset is charging with type-C port., ?Comfortable and Portable?-- ?Portable loudspeaker comes with an adjustable band that you can use it to tie around your waist or hang on your neck. ?Voice amplifier for teachers has a clip on the back, you can clip on a belt or the pant waistband. ?The wired headset microphone is adjustable. ?Fashionable design that is suitable for teaching, trainer, singer, coach, tour guide, shopping mall, presentation, Yoga, outdoor speech etc., ?Upgraded Microphone Speaker?- This portable microphone speaker can work as an MP3 audio player, can be used on computers or smartphones. S358 is equipped with a mainstream USB-C charging interface. The package is including a USB Type A to USB Type C charging cable, it can be charged with 5V charger or computer USB port., ?