Features: Stereo BT 5.0: BT 5.0 has fast connection, low power consumption, and more stable signal transmission. The headset uses smart touch to enjoy the stereo HIFI sound quality, Metal Charging Case: The charging case is made of metal craftsmanship, and the magnesium-aluminum alloy elliptical cabin has a delicate and comfortable texture. Long Battery Life: The earphones can be charged automatically when put into the case, and the power will be automatically turned off when fully charged. The battery will last for a long time in standby use. LED Display: LED smart digital display on the charging case, left and right earbuds can be used independently, one-step automatic pairing, real-time perception of power. Waterproof and Comfortable: Ergonomic design, earbud BT earphones are comfortable to wear. IPX6 waterproof, can provide splash protection for running and fitness.