Computer wired headset Bluetooth headset

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1. Bluetooth + MP3 function support stereo music playing phone calling...2. Support all audio devices that have Bluetooth capability such as cell phone tablet PClaptopcomputer etc.3. 3.5mm audio jack provides a simple wired connection of a variety of devices without Bluetooth.4. Allow you to answer or reject phone calls anytime and anywhere.5. Charged via USB convenient and practical.6. Playing time up to 8~9 hours and continue talk time up to 8 hours standby time up to 250 hours.7. Good quality foldable design and adjustable length hinges very comfortable to wear and easy to carry.8. Best choice for listening music watching movie chatting online etc.9. withSD card insertwithout any bluetooth devicecan still enjoy music any time any where.10.Cool shinnging outlook adds the fashionable feel.VersionV4.0Frequency2.40GHz-2.48GHzPower≤4dBmclass2Effectiverange10MSensitivity-84dBm/0.1%BERFrequencyresponse20Hz-20KHzS/Nrate70dBDistortion0.10%Speakersize40mmsupportA2DP1.2AVRCP1.0HSPHSF1.5Voltage3.7VDC(built-in400MAHrechargeablebattery)talkingtime8~9 hourstandbytime250hourchargetime2-2.5hourcurrent40mAoperatetemperature-4~+131°F(-20~+55°C)