1.Compact and Powerful: Amplifier offers a powerful and clear sound without causing any distortion. Its ultra-compact design makes it easy to carry around for teachers, tour guides, and yoga instructors. 2.Portable loudspeaker comes with an adjustable band that you can use it to tie around your waist or hang on your neck. 3.Versatile Connectivity: Features a USB port for easy charging and playing music, supporting multiple audio formats for a seamless experience. 4. and Reliable: Built for rigorous daily use, the amplifier is made with materials that withstand everyday wear and tear, ensuring . 5.Multi-functional Use: Ideal for teaching, outdoor activities, yoga sessions, and more, providing clear and loud sound to a larger audience. power supply mode: Built-in lithium battery Horn number: four battery capacity: 2600 ma Support: SD card,AUX AUX transmission Application: teaching, training, tour guide and promotion. FM radio function: Let you sit in your spare time and listen to interesting news or It's funny talk, which makes boring time happy and full. Colour:black Material:ABS Size:104x104x36mm Package Contents: 1 x host 1 x headset 1 x USB charging cable 1 x belt Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.