Research related to performance evaluation implicates defining work efficiency as result of substituting classic RF by pick by voice technology in warehouse infrastructure. The research outlined the benefits and effect of implementation in comparison with RF order picking. The comparison has been made from the aspect of workers productivity in the warehouse, the accuracy of goods collection and time required for workers training. Based on recent research on the Croatian logistics market, RF technology is mostly used as a given, manual picking is solution for majority of companies. Pick by voice technology is rarely used, by few manufacturer's warehouses and retailers with the highest share on the Croatian market, although companies are announcing its implementation. Although it results in certain benefits, the implementation of a pick by voice system generates large initial costs.