These headphones come with cool zombies cat design that shows exquisite workmanship of the makers. In addition to this, these headphones are equipped with Bluetooth 4.1 technology that ensures faster and more stable transmission. Also, these headphones are fitted with highly advanced drivers that ensure crystal clear sound quality. Last but not least about these headphones is that they are foldable and therefore can be easily carried around. STRICTURE Zombies Cat Bluetooth V4.1 Stereo Over-ear Headphone with Mic Cool zombies cat design with exquisite workmanship Bluetooth 4.1 technology, faster and more stable transmission Can connect 2 Bluetooth devices simtaneously, will never miss a call when enjoying music High quaty 40mm big driver unit ensures a spacious, clear sound Built-in high definition microphone for crystal clear phone call CVC intelgent noise reduction, lets you shut out the world and lose yourself in your music Professional HiFi sound quaty, enjoys rich bass and clear, pleasant treble Audio jack design for connecting with non-Bluetooth audio device, more convenient It can be folded to save space and easily carry around Support power level display on iOS device Specifications: Certificate : FCC, RoHS Connection : Bluetooth Earphone Feature : Hi-Fi, Noise-Canceng, With Microphone Earphone Type : Over-Ear General Use : For Cellphone, For Computer, For Media Player Socket : Micro USB Length : 23.300cm Width : 18.500cm Height : 10.300cm Weight : 0.862kg Gross Weight : 0.965kg Bluetooth version: CSR V4.1 Protocol: HSP, HFP, A2DP, AVRCP Bluetooth distance: up to 10m Frequency: 2.402-2.48GHz Receiver distance: 10m 360° Speaker unit: 40mm Impedance: 32? Battery capacity: 3.7V 450mAh -ion battery Music time: about 20 hours Talk time: about 30 hours Standby time: up to 400 hours Charging time: about 3 hours Charging port: micro USB Compatible with: iPhone, iPad, iPod, Samsung, Sony, HTC, Huawei etc phones and tablets