If you want to find a high-quality and multifunctional headset， the Stereo Bluetooth Headphone is your best choice. The Bluetooth headphone combines the Bluetooth， MicroSD / TF Card MP3 player and FM Radio function. With this product， you greatly enjoy the wonderful wireless music， listen to FM radio， and it also can be worked as a MP3 Player because it supports playing MicroSD / TF card. Moreover， The leatherette ear cushion can greatly insulate the sounds around you， so you can hear your call clearly， and you can see goodbye to wobbly over the-ear headsets! The over-the-head styling headphone is stable， lightweight and comfortable.?Features:Multifunctional headphones: Bluetooth + Stereo Headset Combo + Card MP3 player + FM Radio function.Greatly enjoy the wonderful wireless music， the music of TF card and listen to FM radio.?Enhanced noise reduction， perfectly suitable for listening music， watching movie， chatting online， hands-free call， etc.Be designed with two High-grade speaker， powerful bass system， bring you superior sound effect.DSP noise cancellation， bring you clear sound effect.?EQ mode can be changed by short press FM/MP3 button (EQ mode includes Natural / Pop / Rock / Jazz / Classic / Country / Heave bass)， bring you vivid sound field， sound clarity and enjoy different styles of music.High-quality and fashionable appearance; adjustable Headband and very comfortable to wear.Low power consumption， bring you long talking time and music playing time.?Wireless Bluetooth headset， compatible with Bluetooth enabled devices， such as， for iPhone / iPad / Samsung / HTC / Tablet PC， etc.?Easily control playing / pausing， adjusting the volume， previous/next songs， answering / rejecting / ending an incoming call and redialing the last number.?Supplied with a 3.5mm cable that you can use to connect the headphone to music players without Bluetooth function.Powered by the lithium battery (can be charged via USB).Specifications:Brand Name:?COMBATERWINGModel Number:?STN-08Bluetooth version: V2.1 + EDRSupport Profiles: HSP， HFP， A2DP， AVRCP.?Profile and Advanced Audio Distribution Profile(A2DP)Transmitting Power: Class 2Receiving and transmitting distance: 0-10 meters.Frequency Range: 2.4 GHz一2.4835 GHz ISM bandBluetooth sensitivity: -85dB?Music Formats: MP3/WMATF card support: 128M-32GB (card is not included)FM frequency response: 87.5-108MHzRechargeable battery: 550mAhSpeaker: Diameter 40mmHeadphone sensitivity: 115dB S.P.L at 1KHzImpedance: 32ohmFrequency response: 20HZ-20KHZRated power: 40mWPower capability: 100mWMicrophone unit: 4.5 * 2mm -58dB+/-3dBPlug type: 3.5mm stereoCharging time: Approx. 3-5hoursColor: White With Blue， Black with Red (Optional)Audio cable length: Approx. 1.1m / 3.61ftHeadphone size: Approx. 20.5 * 18.0 * 8.2 cm / 8.1 *7.1 * 3.2in?Headphone weight: 315g / 11.1ozPackage size: 22.0 * 19.5 * 9.5cm / 8.7 * 7.7 * 3.7inPackage weight: 520g / 18.0 oz?Package List:1 * Headset1 * USB Cable1 * Audio Cable1 * English / Chinese User Manual?