Features -Cordless design, please be bound by cord, swing freely -Can connect to various devices with Bluetooth -The humanized design of the earmuffs fits the ears and is comfortable to wear -Can reduce external noise, double stereo sound is clearer -There is a card slot next to it, you can use a TF card to load music, and you can listen to songs without a mobile phone -Outdoor running, fitness and cycling meet your different needs Specifications Product size:18*12*8.5cm Weight: 300g How to use: head mounted Channel: stereo Colour: black/white/black and red Packing: color box Package Includes Bluetooth headphones * 1 instruction manual*1 Audio cable * 1 Packing box * 1 Charging line * 1 Notice: All sizes are approximate and should allow for manufacturing tolerances. Due to the current weather conditions, packages to most areas in DE will be delayed by a few days. The courier is working hard to get the service back to normal as soon as possible. Thank you for your understanding and your patience Dear buyer, if the package is found to be badly damaged, please take a photo, refuse and for solution. Due to the influence of the display and the light of the photo, there may be a color difference between the color of the goods and the picture of you. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.