Includes: Device batteries lead wires electrodes (1 pack of 4) carrying case and users manual.Ultima combo (Tens/EMS with body part diagram) * Offers the user the choice of 5 modes of TENS and 2 Modes of EMS * Timer: 5~60mins or continuous * 3 Years Manufacturer 's warranty * HCPCS Code: E0720/E0745 * 2 AA batteries are included with the unit