[Powerful Sound] Small-sized, 8W output is clear and noise-free, sufficient to cover a room accommodating 30-100 people. Amplifies your voice and helps protect your throat. [Easy to Carry] This portable speaker is compact and lightweight. Use the detachable clip to attach it to your pocket or belt, or wear it around your neck or hang it on a waist belt. [Rechargeable Amplifier] The amplifier features a built-in 4500mAh lithium battery. It takes 4-6 hours to fully charge and provides up to 20 hours of amplification time and up to 13 hours of music playback. [Power Pack] This microphone and speaker set functions as a portable public address system. Ideal for use in classrooms, community events, and outdoor settings. [Support Music Playback] Supports music playback from TF (microSD) cards and USB drives. Offers functions such as single song repeat, full playlist loop, and track switching. Color: Black Material: Plastic Package Contents: 1 x Voice Speaker 1 x Headset 1 x USB Charger Cable Note: Light reflection and differences in display screens may cause slight variations in the color shown. Measurement error allowance is +/- 1-3 cm.