Powerful sound: Small size, 8 W power is clear and noise-free, sufficient for covering a room with 30-100 people. Amplify your voice and protect your neck Lightweight: This portable speaker is small and lightweight. You can use the detachable clip to attach it to your pocket or belt, or you can tie it around your neck or hang it on a belt around your waist Rechargeable amplifier: This amplifier has an integrated 4500mAh lithium battery. It takes 4-6 hours to fully charge the microphone speaker. Can play up to 20 hours of amplification time and up to 13 hours of music playback time Power amplifier: This microphone and set is a portable speaker system. You can take it to various places such as classrooms, phone booths, and outdoors Music playback support: This amplifier can play TF cards (-SD cards) and USB discs. You can repeat a single song, loop all music, and switch Black color Material: Plastic Package includes: 1 x speaker 1 x headset 1 x USB charging cable Only the above packaging contents included; other products are not included Note: Light reflection and different screens may cause the item's color to differ slightly from the actual product