Bluetooth 5.3 - Features with the advanced Bluetooth 5.3 technology, ElecSmart Earbuds support HSP HFP A2DP AVRCP, which provides instant pairing and stable transmission without interruptions.

Cross-Field Design - The ear buds case a USB C&A port so that it can not only provide battery life for the earphones but also serve as a portable charger to power your cellphones or other electronic devices in case of emergency. Keeps you away from the anxiety of your phone shutting down due to power depletion.

Immersive Stereo Sound - The balance of rich bass, natural midrange, and clear and powerful high frequencies enables it to carry different sound styles. Effective noise filtering makes every detail can be heard. With just a gentle tap of it, you will freely switch to different exclusive concerts, cinemas and enjoy the magic of music, movies during working, running, fitness, workout!

Comfortable In-Ear Buds Design - Combining precise calculations with many experiments to design the shape of the headsets. The perfect curvature with a small body of only 6g disperses the pressure in the ear canal while staying stable to bring you the ultimate comfortable wearing experience.

One-Step Reconnection - With the first successful connection, just open the lid of the charging case to immediately auto-reconnect to your device, without even taking the buds out of the case. The latest 5.3 version of Bluetooth ensures the speed and stability of the connection within 10m/33ft. Widely compatible for iPhone Android phones, TV, computer, laptop