【13mm Dynamic Driver】Equipped with a powerful 13mm dynamic speaker, these half in-ear earbuds deliver clear mids, deep bass, and crisp highs. 【AAC Lossless Audio】Designed to support AAC decoding, these Bluetooth-compatible earbuds offer a richer and more detailed sound profile. Lossless transmission ensures high fidelity from device to ear, with minimal distortion. 【Ultra-Lightweight Half In-Ear Fit】Each earbud weighs just 3.1g, providing a feather-light, semi-open design that doesn’t block the ear canal—ideal for long listening sessions without fatigue. 【Bluetooth-compatible 5.3 Technology】Experience smoother connectivity and faster pairing with the latest Bluetooth-compatible 5.3 chip. This version ensures a more stable connection, reduced latency, and lower power consumption. 【Smart Touch Controls】Enjoy intuitive control at your fingertips with sensitive touch sensors on each earbud. The touch control surface responds accurately, giving you hassle-free operation without reaching for your phone. Specifications: Bluetooth-compatible name: E03 Material: ABS+PC Continuous call time: about 3 hours Charging time in charging case: about 2 hours Continuous playback time: about 4 hours Headphone charging time: about 1 hour Comprehensive battery life: 16 hours Product size: 53.92*47.96*24.66mm Headphone battery capacity: 25mAh Charging case battery capacity: 250mAh