Our earphones have automatic noise reduction technology, wireless bluetooth, super long standby time, fast charging, long use, soft earmuffs, comfortable to wear, retractable and foldable, easy to carry and use, suitable for most people, no matter where they go, take them with them It, you will become more cool and fashionable. [Product color]:Black,Green,Pink,Red,White[Product Attributes]: Headset Bluetooth Headset[Speaker diameter]: 40 mm rubidium iron boron moving coil speaker[Power capacity]: 250 mAh[Bluetooth solution]: Jerry 5.1[How to use]: Bluetooth + 3.5MM interface + TF card[Product gross weight]: 330g (including color box)[Package size]: 21 x 18.8 x 7.7cmPackage list: Headphones *1 pcs; 3.5MM audio cable,Manual *1 pcs;