Advanced Bluetooth 5.3 Technology: Powered by the JL AC6973 chip, the Hoco EW53 Mini Compact TWS Wireless Earphones offer a cutting-edge Bluetooth 5.3 experience, ensuring a stable and efficient wireless connection. Extended Battery Life: Enjoy up to 4 hours of use on a single charge, and with a 300mAh battery in the charging case, keep your earphones powered for longer. The compact design ensures they're ready to go whenever you are, with a standby time of 150 hours. Dual Microphones and Physical Noise Cancelling: Immerse yourself in crystal-clear sound thanks to dual microphones and physical noise-canceling technology. Whether you're on a call or enjoying music, experience superior audio quality. Compact and Lightweight Design: With dimensions of 564725.4mm and a total weight of 35.6g, these earphones are designed for comfort and portability. Slip them into your pocket, and take your music with you wherever you go. Intelligent Features: The EW53 supports leader-follower switching, ensuring a seamless transition between devices. Summon Siri effortlessly, adding a touch of convenience to your daily tasks.