[Powerful Sound] Small in size, 8W power delivers clear and noise-free sound, sufficient 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 tie it around your neck or hang it from 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, providing up to 20 hours of amplification time and up to 13 hours of music playback time. [Power] Amplifier: This microphone and speaker set is a portable speaker system. You can take it to various locations like classrooms, bingo halls, and outdoor events. [Supports Music Playback] This amplifier can play TF cards (micro-SD cards) and U disks. You can repeat a single song, loop all music, and switch tracks. Color: Black Material: Plastic Package Contents: 1 x Voice Speaker, 1 x Headset, 1 x USB Charging Cable. Only the above package contents are included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3 cm.