Colour: gold. Material:plastic. Size:75 x 115 x 31mm. [Powerful Sound]Small-sized voice amplifier, 8W output is clear and noise-free. Amplify your voice and protect your throat. [Easy to Carry]This portable speaker is small and light, you can use the detachable to fix it on your pocket or belt, or you can tie it around your neck or it on a belt around your waist. [Rechargeable Amplifier]This amplifier has a built-in 4500mAh lithium battery, it takes 1-2 hours to fully charge the microphone speaker, but can use 15 hours. [Lightweight pack]. Amplifier This microphone and speaker set is a portable public address system. You can take it to multiple places such as classrooms, bingo phones and outdoors. [Support music playback]This amplifier can play TF (-SD card) card and U disk. You can repeat a single song, loop all music, and switch songs. 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.