HamiltonBuhl Electronic Drum Kit with Speaker Hamilton Buhl 9 Pad Roll-Up Electric Drum Kit - Bluetooth Speaker - USB Power Supply (for Drum Kit) USB Charging Cable (for Speaker) - 1/8" Male to 1/8" Male Audio Cable - Hamilton Buhl 1 Year Warranty Record function Play Along feature 3 different drum styles, with different demo songs and different rhythms Play Along feature with a speaker only Record function Play Along feature 3 different drum styles, with different demo songs &amp; different rhythms Play Along feature with a speaker only Requires external speaker, 3.5 mm jack Runs on 2 &#034;AAA&#034; batteries (not included) Includes USB power supply Bluetooth pocket size speaker 4 W x 2H x 1.25DFrequency response: 90Hz-20KHz Sensitivity: 80db  2DB Distortion: 0.3% Line in 3.5 mm male to 3.5mm male audio cable Rechargeable Li-ion battery USB cable supplied for charging TF card reader Micro USB charger