High-fidelity Audio and Built-in MIC: FAMOO increase the volume of the Bluetooth earbuds theme unit, integrated internal components, while increasing the sound resonance cavity of about 20%, use a 13.4mm graphene diaphragm, so that the overall sound range is broader, More powerful bass. Ultra Lightweight and Comfort： The surface and Angle of X25 earbuds in-ear part have been polished and refined repeatedly to achieve a balance between beauty and comfort and make it comfortable to wear. Likewise, a single earbud weighs only 4.1g, ergonomic design provides a comfortable and secure fit that doesn’t protrude from your ears especially for Sports, Workout, Gym. Bluetooth 5.3 Chip: Ear buds adopts the advanced Bluetooth 5.3 Chip, Compared with Bluetooth 5.2, the connection signal is more stable, transmission speed is faster and the pairing mode can be switched in 1 second. IPX8 Waterproof: Bluetooth headphones featuring IPX8 nano coating, they are watertight to keep them protected whilst working up a sweat or getting caught in the rain. These Wireless earbuds are the ideal companion whilst doing jogging, running, yoga, sports, and going to the gym. 35H of Playtime: With fast charging Type-C interface, the bluetooth earphones be fully charged only need 1.5H. The earbuds can play 5h on a single charge, the charging case can provide an additional 7 times charge.