Product FeaturesBluetooth 4.0 technologyLets you wirelessly connect to compatible devices， including select Apple iPhone 6/5s/5c/5/4s/4c/3/2 iPAD iPod， Android Smart phone; Samsung Galaxy S5/S4/S3 Note 4/3/2; Galaxy Tablet; Nokia Toshiba Sony and BlackBerry Smart phone and devices; most Mac and Bluetooth-enabled PC laptops Tablet and desktops.Built-in microphoneAllows clear communication; Enables use as a headset. Music and phone controls ensure ease of use. Noise cancellation technology， Talking with cell phone clearly， 3.5mm audio jackProvides a simple wired connection of a variety of devices.40mm driversAlong with neodymium magnets produce deep， enhanced bass and full-range sound for dynamic audio.Sound-isolating designBlocks ambient noise for an immersive listening experience.Built-in rechargeable lithium-polymer batteryWith Li-battery enables up to 8-9 hours of talk time or audio playback.Carrying pouchProtects the headphones during transport and storage.20Hz - 20kHz frequency responseOffers faithful sound reproduction.64 ohms impedanceEfficiently conducts power.Supports wireless in-game chatting and music streamingWhen connected to your PC， mobile phone， TV or PlayStation 3 (PS3) for versatile use. Remote buttons make it easy to control media playback.Space-saving foldable headbandAllows simple transport and storage in the included hard travel case.Included micro USB charge cableMakes it easy to replenish the battery's power.30mW maximum input power for musicAlong with 20mW long-term input power for impressive sound.Passive noise reductionUp to 15dB blocks background sounds for an immersive listening experience. Noise Blackout with dual microphone technology promotes optimal call quality.119dB sensitivity (@ 1kHz)Delivers powerful sound.Frequency ResponseFrequency Response:20Hz-20，000HzHave Separate control key:CSR bluetooth 4.0 solution，HSP，HFP，A2DP，AVRCPButton function:V- /next music/V+/previous music/pause/play