A:AnswerIt sounds like you got an open box model by mistake to me. On some open box models, they tell you that things like that won't be included but that explains the lower prices.
A:AnswerThanks for your inquiry. Our JBL Partybox 710 features an output power of 800W RMS. Its frequency response range spans from 35Hz to 20kHz, measured at -6dB.