JBL - Tune 130NC True Wireless Noise Cancelling In-Ear Earbuds connect wirelessly via Bluetooth technology. The buds have an ergonomic design that doesn't hurt the ear and gives a comfortable fit. It has adopted active noise-cancellation technology that removes all the distracting noise from the background. Its 4 microphones allow crystal clear communication during calls. The buds give 8 hours ph non-stop playback and 40 hours in the charging case. It produces thrumming audio because of Smart Ambient technology. Also, it is IPX4 waterproof and sweatproof. The device comes with 3 ear tips in sizes S, M, and L.