Bluetooth 5.3 technology: The Bluetooth in-ear headphones are equipped with the new Bluetooth 5.3 chip. The Bluetooth headset uses a 13mm speaker. 4 HD microphones built into the ENC noise-cancelling wireless headset improve vocals by 75 per cent and bass by 50 per cent. LED display and 42 hours of playback time: Individually designed LED wireless headset battery display, Bluetooth headset A charging case with USB-C charging cable, charging case fully charged in just 1.5 hours. The headphones provide 6-7 hours of music playback and the portable charging case provides an additional 42 hours of playback time Auto pairing and touch controls: play/pause music, answer/end calls, adjust volume, next/previous track and activate voice assistant ERGONOMIC DESIGN AND IP6 WATERPROOF: These headphones are IP7 waterproof to withstand accidental splashes, sweat, or rain drops, making them perfect for sports, training, running, and more.