Earless Conduction-long Wireless Bluetooth Sports Neck Headset Features: Earphones do not need to enter the ear. Black technology can release the ears and keep attention to the surrounding environment while listening to music Touch+button · new design, song cutting/volume/call switching at will, easy and fast Breakthrough 360 ° panoramic sound, feel personally Lightweight fuselage design, weighing 22g, combined with ear-mounted design, creates a golden geometry wearing stability, which can not be lost in sports Listen to music for 20 hours continuously. and sweat-proof without fear of sweating, even if sweating is good for earphones, it is , new and bright against stain erosion Memory titanium alloy neck hanger is compression and without deformation. It can match the shape according to the size of different types, and it can be twisted at will, with constant folding Specification: Material: abs Conductor length: 10m Frequency response range: 20Hz~20kHz (Hz) Wearing method: ear type Package List: 1x Bluetooth headset Notes: Due to different displays and lighting effects, the actual color of the product may be slightly different from the color shown on the picture. Thanks! Due to manual measurement, please allow slight measurement deviation.