<div> <p>??Small but mighty?? -- If you want to buy a personal voice amplifier that is small and light, then the S17 is your choice. It is a portable microphone speaker with</p> <p>30&nbsp;watt output power, which can clearly amplify your voice and protect your vocal cords, allowing you to easily make your voice heard by 25-100&nbsp;people.</p> ?? Lone Battery Life?? -- The small voice amplifier has a high-capacity 2200 mAh rechargeable Li-ion battery that provides up to 12 hours of operation from a fully charged battery. Charging is easy using the included USB cable. A full charge only takes 3-5&nbsp;hours. <p>??Is it convenient and portable? -- ??The portable speaker has an adjustable strap that you can use to tie it around your waist or hang it around your neck. ??The teacher speaker amplifier has a clip on the back, you can clip it on your belt or pants waistband. The wired headset microphone is adjustable.</p> <p>??Stable performance? -- It is an original voice amplifier with stable performance. The portable headset microphone is a flexible gooseneck design that sits right next to your mouth. Perfect for anyone who organizes events and needs to project their voice. Suitable for teaching, trainers, singers, coaches, tour guides, shopping malls, presentations, yoga, outdoor speaking, etc.</p> <p>Size 8.4*9.2*2.8&nbsp;CM</p> </ div> </div>