18W portable voice amplifier S512 is such a nice voice speaker which can amplify your voice across the room clearly and save your throat. Suitable for teachers, singing, coaches, tour guides, elderly, fitness instructors, parkinsons, presentation, yoga, outdoors, speech, classroom and so on. It also supports TF card, U disk & Aux audio input which could let you enjoy the wonderful music after work. Easy to Use Operation is straight forward - just plug in the headset and turn the speaker on. Small & Lightweight You can wear this mini voice amplifier around waist or hang it on neck with the help of a waistband.

One of The Best Things It could work well for elderly who cannot project their voice, keep them socially involved. And good for the one who is having trouble with their own vocal volume.
Specifications: Output
power: 18W
Battery capacity: 1200mAh
Charging voltage: DC5V, 500mAh
Working time: 8-12 hours (MIC mode); 6-8 hours (Musical mode). (It’s up to the volume you control)
Charging time: 3-5 hours
Sounds coverage: 25000sq.
ft Product size: 98mm*88mm*43mm
Unit weight: 0.48 lb What's in the box? 1 x Voice Amplifier 1 x Wired Microphone Headset 1 x Waistband 1 x Audio Cable 1 x USB Cable 1 x DC 5V Charger 1 x User Manual Portable Voice Amplifier Microphone and Speaker System Personal Speaker with Microphone Original SHIDU Voice Amplifier, Portable Microphone Amplifier Speaker Small PA System with Wired Microphone Headset for Teachers, Singing, Fitness Instructor, Classroom, Elderly Portable Ultralight Mini Voice Amplifier With Wired Microphone Headset and Waistband Rechargeable PA System Supports MP3 Format Audio for Teachers, Singing, Coaches, Training, Presentation, Costumes