Features 1??Built?in double speaker, amazing bass effect; Highly simulation sound effect. 2??USB Type?C interface, which can charge and connect to computer at the same time. 3??Common mobile phone and tablet PC adapters can be used to power the electronic drum. There is no need to buy additional adapters. 4??MP3 song input, simulate the real percussion performance with the song. 5??Step cymbals use pedal control, highly simulation effect, with close cymbals, open cymbals, pedal step cymbals sound effect. Specification Condition: Item Type: Electronic Drum Material: ABS + Silicone Power Supply: Built-in rechargeable lithium battery (2000mAh DC 5V) Length of Drum Stick: Approx. 31.8cm / 12.5in Size: Approx. 43.5 x 34 x 4cm / 17.1 x 13.4 x 1.6in Built-in three-color lighting effect, simulating the stage light display Built-in Bluetooth connection, through the connection to the phone or tablet to achieve the song playback Package List 1 x Electronic Drum 2 x Drum Stick 1 x Pedal Set 1 x USB Cable 1 x 3.5mm Cable 1 x Manual