Item Type: Roll Up Drum Kitum Set Material: Silicone, ABS, Maple Model: WG902 Applicable Age: 3 Years old + Battery: 18650, 7.4V, 2500mah (Built in) Package List 1 x Roll Up Drum Kit 1 x USB Cable 2 x Drum Stick 1 x Dual Pedals 1 x User Manual 1. If the low battery indicator is on or abnormal, the battery may be insufficient, and it needs to be charged in time2. If the sound is abnormal, please restart3. Please use the product on a stable ground4. It is forbidden to disassemble the parts of this product5.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 1Can be connected to a computer to edit music and play games, allowing you to record drum music inspiration anytime 2You can connect headphones to the electric drum to enjoy quiet practice, or connect external speakers to provide live concerts 3Can provide more powerful sound and more real playing experience without external equipment 4The drum set is made of silicone, waterproof, easy to clean, not easy to fade, non toxic and corrosion resistant 5Very suitable for children or beginners to learn and practice electronic drums, family entertainment, friends gatherings and travel entertainment