1. Light and thin drum surface, 9 drum disc design; 2. Support , can play game; 3. Can be connected to dual pedal, headphones, mobile phones, audio output 4. Must be connected to the speaker, must be connected to the power supply; 5. Built in multi drum group, multiple demonstration , rhythm, recording, adjustable rhythm, volume size. Built in 2 battery slots can be used without power supply, convenient and fast Light, easy to carry, easy for students or to or practice, where you can ! size:40x25cm Material:ABS plastic + electronic components colour:Black Package Contents: 2 x pedal 2 x Drumsticks 1 x USB charging cable 1 x Hand-rolled electronic drum 1 x Chinese and English manual Only the above package content, other products are not included. Note: Light 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.