Designed for Sports & IPX7 Waterproof -- Comfort and secure fit with lightweight and ergonomic design, supper stability with earhook, in-ear fitting tips, and headband, great for Running, Jogging, Hiking, Biking, Gym, Working out outdoors or at home. IPX7 waterproof effortlessly protects the headphones wireless bluetooth earbuds from raindrops or sweat during intense workouts, and enjoy sports and outdoor activities. Dual LED Digital Display & 48hrs Playtime -- Wireless earphones with dual power display show the remaining battery of the case by the number on the screen and the charging status of the ear buds by up and down of the LED bar. Charges the Bluetooth earbuds automatically when it's placed inside the case, thus you can use the headphones for about 48 hours non-stop, never worried about power shortage, and carry out outdoor activities freely. Superior Clear Call & High-fidelity Audio -- These Bluetooth headphones with a microphone adopt a 10mm composite diaphragm and unique stereo design, delivering powerful bass, midrange, and stunningly clear vocals. Over-ear headphones with noise-canceling microphones work efficiently to reduce the ambient noise around you and ensure your voice is heard clearly during phone calls. They are the ideal choice for your office business, you can calls or conference calls with confidence all the time. Auto Pairing & Bluetooth 5.3 -- Open the over-ear headphones cover green light blinking indicates that the wireless earbuds are in pairing, enabling the Bluetooth of your phone to search U5 to connect. After the first successful connection, these wireless earphones would instantly pair once open the earbuds cover and auto connects with the last paired device. Adopted the newest Bluetooth V5.3 chipset and wireless technology, our U5 workout headphones connect quickly and stably. Touch Control & Wide Compatibility -- Built-in sensitive touch control key on the ear buds, which let you easily manage music, phone calls, or adjust volume, all operations at your fingertips without taking out your mobile phone. Compared with a physical button, it largely minimizes the pressure on your ears. Our earbuds with ear hooks are widely compatible with most Bluetooth-enabled devices including iPhone or Android smartphones, TV, computer, laptops etc. Material: ABS + PC with 2 pairs of earplugs and charging cable. Bluetooth specification: Bluetooth V5.3, Waterproof grade: IPX7 grade, horn: 10mm, Impedance: 32 15%, Charging time: about 2 hours, Talk/music time: about 7 hours. Battery capacity: 50mah * 2, charging compartment capacity: 520mah.