SAINTLARK S22 Voice Amplifier for Teachers，with Wired Portable Microphone and Speaker and Belt Supports MP3 Format Audio for Training,presentations, Guided Tours, Personal Voice Amplifier

(professionalism) Our is a professional voice amplifier company. S22 with 3-inch portable voice amplifier, light weight (0.6 pounds), small size (4.4×3.3×1.7 inches) environmentally friendly materials (ABS) output power of 10W, you can easily make a speech to 100 people and let them hear clearly.
(features) voice amplifier can be used with the help of a belt hanging around the neck or tied around the waist, support for TF card playback , repeat playback of a single song, loop playback of all the music and switching songs
(Uses)Our voice amplifier for teachers are versatile and can be used for teaching, guided tours, promotion, lectures, conferences and meetings, morning exercise, dance, training
(Battery) Built-in 3.7/1800MAH rechargeable lithium battery, up to 6 hours continuous working time. You can use Type-c charging to charge this classroom microphone for teachers, it only takes about three hours to recharge, or you can charge it while using it
(Hint) Please charge the amplificador de voz before using it for the first time, and keep a certain distance between the stereo and the teacher’s microphone to avoid noise.