All new TecSox Bullet Pro earbuds have an advanced AI chipset and a 12mm speaker driver for a high-performance music experience. These TecSox Earbuds come with the latest Bluetooth 5.1 chipset and 8*5 hours of playtime. With 360 stereo decoder and environmental noise cancellation, TecSox Bullet Pro earbuds are your only go-to for all sorts of listening experiences. These tecsox earbuds are L- shaped for an ergonomic fit, making them easy on the ears for prolonged use. With Instant wake & pair technology and a MEMC advanced microphone that filters out 90% of disruptive noise, you experience noise-free calling. These exceptional earbuds can be full-charged in 40 minutes with fast Type-C charging.