Description of product:Xiaomi Redmi Buds 4 Active are excellent wireless headphones for more demanding users.12mm dynamic speakerThe 12mm dynamic speaker is even bigger than before.Thanks to expert tuning by Xiaomi Acoustic Lab, you get improved bass and increased acoustics, giving users around the world a pleasant listening experienceNoise cancellation during callsEach earpiece is equipped with a highly sensitive microphone that works to reduce ambient noise interference and ensure optimal speech intelligibility for effective communication even in noisy environments.Extremely long battery lifeThe battery life of the headphones is up to 5 hours on a single charge and up to 28 hours with the charging case, so you can enjoy great music day and night.Fast chargingFast charging means you can enjoy another 110 minutes of listening to music after 10 minutes of charging.Take a quick break and then pick up the music right where you left off.BluetoothThe headphones are now equipped with the latest Bluetooth 5.3 technology, which enables lower energy consumption, greater signal stability and stronger resistance to interference.Even if you are surrounded by several devices, you will still have a reliable transmission without interference.Low latency modeWith Bluetooth 5.3 technology, you can easily enter low latency mode for an immersive gaming experience with exceptional precision.You will no longer miss any crucial moments in the game and you will be able to control the game efficiently and with precision.Touch controlThe touch control allows you to smoothly and easily switch between different modes using gentle touches.IPX4 waterproofThe headphones now feature an elegant and professional construction design that has passed the IPX4 water resistance test.Whether you're heading out or working up a sweat at the gym, rest assured that they'll always keep up with the activity and be close at hand.Easy to customize headphonesDownload the Xiaomi Earbuds app where you can set low latency.You are in control of the personalized features of the headphones.Properties:- Dynamic speaker: 12mm- Bluetooth 5.3- ANC- Touch control- Microphone- IPx4- Duration on one charge: up to 5 h- Total duration with case: Up to 28 h- USB-C chargingΧρόνος Λειτουργίας 5 ώρες , Λειτουργία με Θήκη Φόρτισης 28 ώρες , Ζωή μπαταρίας με μία φόρτιση 5 ώρες , Γρήγορη Φόρτιση , Bluetooth 5.3 , Αντοχή σε νερό IPX4