... , Professional Design , Powerful transducer and clear circut , Top quality steel made for body,cover and base Digital LCD ... made and customized design , Professional testing,quality assurance Sophisticated design/fabulous outlook , Digital control Timer Heating Temperature control ... , Family , etc. 40,000 HzStainless Steel SUS30415 L1-30minutes, Digital timerAC 100 ~ 120V, 50 / 60HzAC 220 ~ 240V, 50 ...