The Embryo and Oocyte Transporter - TREO WTA has a sophisticated electronic heating and cooling system, with high precision sensors for increased temperature control. Built in aluminum, it has internal battery that guarantees autonomy of up to 48 hours of continuous operation (ambient temperature of 25 ° C). It has Datalog (data logger) of the last 24 hours of operation and audible alarm of thermal oscillation. It also allows the monitoring of oocyte and embryo packaging parameters by "Bluetooth" - Android through the WTATech application, available on Google Play. 
 
These features offer, in addition to its practicality, safety to transport embryos and oocytes between the field and the IVF laboratory. It allows to accommodate 35 microtubes of WTA oocytes of 1,5 mL (ø = 14,2 mm) and 152 vales of 0.25 mL embryos.