Silicon electronic drum set with 9 different tones and built-in speakers. Please check the images for included accessories. AC adapter, warranty, and instruction manual are not included. Sound will play when you connect the cable to your USB power adapter. There are traces of tape from the time of purchase on the box. I've played with it a few times. Since it's made of silicone, it easily attracts dust. Please refrain from purchasing if you are concerned. - Model Name: SILICON DRUM - Included Accessories: Drumsticks, Speaker - Features: 9 different tones, built-in speaker - Material: Silicone - Connection Type: USB connection Thank you for looking.