Swift and Stable Connectivity With Wireless 5.3 technology, PD-BT533N Pro earbuds provide a fast and solid connection, ensuring zero latency. ANC+ENC technology ANC+ENC technology combines two advanced audio technologies: Active Noise Cancellation (ANC) and Environmental Noise Cancellation (ENC) to provide a superior listening and communication experience. Extended Playtime Your PRODA ENC Earbuds will keep you entertained for up to 6 hours. You can multiply this time up to 30 hours with t