Retractable Wireless Bluetooth V4.1 Headset Music Earphones

1、Carefully selected protein leather, smooth and high-strength aluminum alloy material. After many times of optimized quality selection, RB-500HB is comfortable to wear and fits the ear contour. 2、This headphone uses 40mm diameter high quality unit, after the designer's careful tuning, it brings you strong low frequency, clean vocals and bright and transparent high frequency. 3、Bluetooth 1 technology, transmitting high-rate music signals, helping users to enjoy wireless high-quality audio while also establishing a fast connection. 4、Wireless and wired free switching, 5mm standard gold-plated head pin, is compatible with most audio playback devices on the market. 5、Fully enclosed cavity design, combined with soft and highly elastic protein earmuffs, it can effectively reduce the environmental noise to bring you a pure music experience.