Features: 1.With rechargeable built-in battery, the sufficient power allows for long time relaxing playing. 2.Standard drum setting guarantees your interesting drum playing enjoyment just like real drum set. 3.Multiple sound effects and professional demonstration songs will make your beating more diverse. 4.Equipped with speed-adjustable accompaniments and recording function, the best helper for peactice. 5.The soft and light weight pad can be rolled into a compact size for easier carrying and storage. specification:Item Type: Electronic Drum Pad Set Product Material: Silicone Battery Type: Lithium Battery(Delivered with built-in battery) Battery Capacity: 2000mAh Power Adapter: 5V / 2A PackageList: 1 x Electronic Drum Pad 1 x Pedal 2 x Drumstick 1 x USB Cable 1 x Audio Cable 1 x Power Adapter 1 x User Manual Note1. Do not fold and press; 2. When placing, please keep a certain distance from strong electromagnetic equipment such as radio and TV to avoid interference; 3. Please don't put the electronic equipment in overheated or dusty place for work, so as not to damage it; 4. Do not bend or squeeze the electronic battery by 90 degrees or a large angle to avoid damage; 5. During use, without any action for 1 minute, it will automatically enter the dormant state, and it can be awakened by hitting the drum surface at will.