... format: AUTO/NTSC/PAL is optional. -Audio output: stereo L/R, 5W*2, 8Ω -Power supply: AC 110V 240V, 50/60HZ ... , B->T, T/B->C, C->T/B, BLD:T->B, L->R, R->L, L/R->C, C->L/R, Implode,BLD:L->R, fade in and out ... : Telecommunications, post offices, hospital, schools; Public Places: subway, airports, stations, gas stations, toll stations, bookstores, parks, exhibition halls, stadiums, museums, convention ...