Bluetooth headphones support two devices connected simultaneously and allow automatically reconnecting if paired successfully before.The built-in magnets prevent the wires tangling together, so you can attach the earbuds together when not in use and wear it like a necklace.The headset has an in-line mic and volume control buttons, perfect for answering calls or listening. Tips: When charging with a charging adapter, please make sure the current should not be greater than 1A. Perfect workout headphones that are snug and secure so the headphones stay put while running, biking or at the gym. High fidelity stereo quality sound for compatible devices, giving you crystal clear voice and rich tones. Double ear wireless Bluetooth headphones heavy bass metal magnet Description Brand: CRSCN Cargo number: S7C Color: golden, silver, Bluetooth protocol: 4.2 Single and double ears: bilateral stereophonic Functions: power display, call function, music support, multi-point connection Way of use: earplug