(5)Technological evolution has led to a growing market for goods that incorporate or are inter-connected with digital content or digital services. Due to the increasing number of such devices and their rapidly growing uptake by consumers, action at Union level is needed in order to ensure that there is a high level of consumer protection and to increase legal certainty as regards the rules applicable to contracts for the sale of such products. Increasing legal certainty would help to reinforce the trust of consumers and sellers.