[Powerful Sound] Small voice amplifier, 8W output is clear and crisp, enough to cover a room of 30-100 people. Amplify your voice and save your throat. [Easy to Carry] This portable speaker is small and lightweight, you can use the detachable clip to fix it on your pocket or belt, or you can tie it around your neck or 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, but plays up to 20 hours amplification time and up to 13 hours music play time. [Lightweight Package]. Amplifier This microphone and speaker set is a portable public address system. You can take it to multiple locations such as classrooms, bingo callers and outdoors. [Support Music Playing] This amplifier can play TF (-SD card) and U disk. You can repeat single tune, loop all music and switch songs. Colour: goldMaterial: plasticSize: 75 x 115 x 31mmPackage Contents:1 x Voice Amplifier1 x Microphone1 x USB cable1 x BeltOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.