Built-in 22 tones of kick drum and percussion soundBattery:: 4 AA Battery Manufacturer No.: SPD-1K Battery Type: AlkalineThe sound of the kick drum is added to the usual performance. Simple and compact percussion pad. SPD:: ONE KICK is a new type of digital percussion pad that anyone can easily incorporate into performance. Built-in 22 tones, which are ideal for taking rhythm with your feet, such as the tr-808 and TR-909's thick kick drums and stomp boxes. operation is very simple, and you can control the tone selection and effect with only four knobs on the top panel. compact yet robust body, you can play in a variety of styles, not only with sticks but also by tapping with your hands or stepping on your feet. It also supports battery power , and can be incorporated into the setting.