Welcome to our store！</br> 1、Multiple Applications: The voice amplifier is compact and portable for presentations, meetings, teaching and other outdoor activities. 2、Clear And Stable Sound: With premium 3 inch speaker, it has powerful sound amplification effect, the sound is clear, stable and not easily deformed. 3、Input Method: Mini voice amplifier supports a variety of sound input mode, can be inserted U disk, Memory Card, adapt to different sound input needs. 4、Long Battery Life: The waistband amplifier has a built in 2200mah battery, which can be used for up to 10 days on a single charge. 5、Multi Function: This portable voice amplifier can also be used for class replay, with headset microphone, which is very wide range of use. <p class="wang-edit-text"><p class="wang-edit-text">Item Type: Voice Amplifier Material: Plastic Color: Black Battery: 1 x 18650 Lithium Battery (Shipped with Built in Battery) (2200mah) Memory Card Slot: Without Memory Card Use: Teacher Teaching, Shopping Mall Promotion Waist Hung Speaker Player <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x Charging Cable&nbsp;&nbsp;&nbsp; 1 x Voice&nbsp;Amplifier1 x Headset Microphone 1 x Waistband 1 x Instruction Manual&nbsp; Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>