[Powerful Sound] Small-sized, 8W output is clear and noise-free, enough to cover a room of 30-100 people. Amplify your voice and protect your throat. [Easy to Carry] This portable speaker is small and light. You can use the detachable clip to fix it on your pocket or belt, or wear 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, providing up to 20 hours of amplification time and up to 13 hours of music playback time. [Power Pack] This microphone and speaker set is a portable public address system. You can take it to various locations such as classrooms, events, and outdoor gatherings. [Support Music Playback] This amplifier supports TF (SD card) and USB drive playback. You can repeat a single song, play all songs in a loop, and switch tracks. Color: Black Material: Plastic Package Contents: 1 x Voice Speaker 1 x Headset 1 x USB Charger Cable Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement may vary by +/- 1-3 cm.