Features: - Support Bluetooth 4.1 + HSP/HFP/A2DP/AVRCP - Pair your headphones with any Bluetooth device for crystal clear music enjoyment - wirelessly - Choose from 3 pairs of ear caps for the perfect fit for you - Ear caps come in a choice of 3 sizes - small, medium and large - for a personalized and perfect fit - Efficient 8.6mm drivers deliver clear and powerful sound - Compact and efficient 8.6mm speaker drivers deliver precise sound with powerful bass, for enhanced listening enjoyment on the go - Tangle-free flat cables for convenience on the go - Anti-slip flat cable ensures that your cord always stays tangle free Ergonomic oval sound tube for a truly comfortable fit The oval shape of the sound tube came about based on extensive research on the human ear. Designed to fit any ear comfortably, the ergonomic shape ensures optimal fit and comfort for total music enjoyment. Oval sound tube inserts seal out ambient noise, while its semi-closed structure delivers enhanced bass performance. Wireless control and enjoyment of music and calls Pair your smart device with your headphones using Bluetooth and enjoy the freedom of crystal clear music and phone calls - without the hassle

cables. Change tracks and answer calls with the easy to use remote control. Frequency range 10 -21 000Hz Impedance 16 ohm Magnet type Neodymium Maximum power input 20 mW Speaker diameter 8.6 mm Sensitivity 107 dB Acoustic system Closed Diaphragm PET Type Dynamic Sound Enhancement - Echo Control - Noise Reduction Voice coil Copper What's in the box Headset,Ear caps,Manual