Specifications: EMS + TENS + Massage. 2 channels 30 TENS programs; 8 of which are freely adjustable 27 EMS programs; 9 of which freely adjustable 3 Massage fixed programs Intensity: up to 120mA max. TENS: 2 - 120Hz; 55-300?s. EMS: : 4 - 100Hz; 100-300?s. MASSAGE: 25-100Hz; 100-250?s. Pulse shape: symmetrical, biphasic, rectangular LCD display with body part indication Rechargeable internal battery Timer / Key lock / Battery indicator Electrode detection (resistance) Complete with electrodes, cable, manual and internal battery Manual including electrode placement suggestions