Excellent performance: it uses high-quality materials and advanced technology to enable fast charging, allowing your speakers to be fully charged and quickly rejuvenated in a short period of time. For example, silver-plated connectors are used to reduce resistance, reduce power loss and improve charging efficiency. Meanwhile, a thicker copper core wire may be used internally to carry more current, ensuring the stability and safety of fast charging. Strong compatibility: Perfectly compatible with UE BOOM 2, UE MEGABOOM, UE Wonderboom and UE ROLL 2 bluetooth speakers, no matter which one, all of them can be quickly charged by this cable, no need to worry about compatibility issues, providing you with convenient charging solutions. DURABLE AND RELIABLE: The cable features a sturdy double shielded design that effectively prevents signal interference from the outside world, and also enhances the cable's abrasion and stretch resistance, reducing the possibility of damage due to friction, bending, and pulling in daily use, and prolonging its lifespan. Flat cable design is not only not easy to knot, convenient for storage and organisation, but also more beautiful and not easy to tangle together, making your desktop or backpack more neat and orderly. SAFETY GUARANTEE: After strict quality testing and safety certification, it meets the relevant standards, with overheat protection, overvoltage protection and short circuit protection, which can effectively protect your speakers and other devices from damage caused by overcharging, overheating and other problems, so you can feel more relieved during the charging process. Convenient to use: the length is reasonably designed, generally about 1.2 metres or 1.5 metres, which is convenient for you to use indoors, connected to a power outlet or computer USB port for charging speakers, but not too long and cumbersome. Moreover, its interface design matches perfectly with the charging interface of the speakers, smooth plugging and unplugging, no loose or poor contact.