This mini voice amplifier is suitable for teachers who need to project their the classroom. The device includes a robust microphone and a , ensuring clear and loud sound. Its portable design allows for easy movement between different teaching spaces, making it a versatile and essential tool for educators. Features -Color:Black -Material:Plastic -Size:9.00X8.50X3.00cm/3.54X3.34X1.18in -Power supply: built-in lithium battery -Interface type: USB -Output power: 5W -SNR: >=70db -Running time: 8 hours -Effective distance: 10 meters -Extended storage: 32GB -Battery capacity: 2200 -Lightweight design: this teacher's microphone is compact and lightweight, making it easy to carry and use in different teaching settings -Powerful sound: the highvolume output ensures that is projected clearly, making it easier for students to you -Robust audio: experience exceptional sound with this amplifier, which delivers clear and crisp audio for an enhanced listening experience -Easy to use: designed for ease of use, this voice amplifier can be quickly set up and operated, allowing teachers to focus on their teaching -Multipurpose: suitable for classroom use, this portable amplifier is also great for lectures, tours, and other speaking events Package list: 1 x loudspeaker 1 x headset microphone 1 x USB cable 1 x strap