[Powerful Sound] Small size, 8W power is clear and noise-free, enough to cover a room of 30-100 people. Amplify your voice and protect your neck. [Easy to carry] 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 a built-in 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 multiple places such as classrooms, bingo halls and outdoors. [Support for music playback] This amplifier can play TF cards (-SD cards) and U disks. You can repeat a single song, loop all music and switch. Black color Material: plastic Package Contents: 1 x Voice Speaker 1 x Headset 1 x USB Charging Cable Only the above package contents, other products are not included. Note: Light reflection and different displays may cause the color of the item to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.