A portable drum kit system is configured to be converted from a transport configuration to a drumming configuration. The drum kit system includes a cajon with a plurality of other drum components and a convertible storage container that converts to a seat when in a drumming configuration. The portable drum kit system is easy to transport in one trip, as all the components are coupled to, configured in or on, the convertible storage container that has a set of wheels and a handle. The portable drum kit eliminates the need for expensive and bulky drum covers, cymbal cases typically required for transportation of these components. The drum kit may include a snare drum, tom tom, hi-hat, cymbal and a tambourine. The cajon may be configured to produce only bass frequencies and may include high and mid tone sound absorbing material within the cajon.