Lenovo HE05X is equipped with a 10mm driver that delivers stunning sound for an enjoyable listening experience. It has a 3.7-volt, 110-mAh large-capacity battery that can last up to 12 hours. Using low-power micro-power technology in conjunction with chip low-power technology significantly increases use time. The carbon fiber composite diaphragm and large moving coil acoustic technology resonate under the action of magnetism and electricity and restore the shocking sound quality of high-frequency, intermediate-frequency, and low-frequency music with high fidelity. It is equipped with Bluetooth 5.0 chips to ensure a stable and fast connection. The Lenovo HE05X features IPX5 waterproof protection that can keep the rain and sweat far away. Its ergonomically designed earphones provide long-term comfort. The Lenovo HE05X  earphone has no Warranty.