... ,blue LED 2.patent 3.small q'ty acceptable 4.CE, RoHS 5.factory ***Digital Compass, time, temperature, baromemeter,alar, ... lead time: 55-60days, if need earlier, pls advise.Certification:CE/ROHSFunctions:* altimeter (m, feet)(absolute/relative) * digital compass show ... design and industrial product design. So OEM is so welcome. Professional digital compass meets CE and RoHS best for travellers