O1 Sports Stereo Music Bluetooth Bt-1 Wireless Earphone for Tablet CellphoneDescription:O1 Sports Stereo Music Bluetooth Bt-1 Wireless Earphone for Tablet CellphoneSoft silicone earplugs set of rainproof anti-perspiration、 can effectively block redundant noiseSmart Compatibility: Supports all Bluetooth-enabled phone、 tablet、 laptop、 、 QQ music、 movies、 etc.Headset type: In-EarChip: AB1512Talk time: 4-6 hoursVersion: V4.0Frequency Range:20-20000 HzSpeaker Specification:Brass ring 8ΦmmSensitivity: 110dbProgram:AB1512 Ver4.0Operating Voltage:3.0V-4.2VCharging time:1-2 hoursWeight:9gStandby time: 80 hours listening to musicBattery capacity: 75mahDuration: 4-5 hoursColor: Black\/GoldNoise: DSP intelligent noise cancellation technology built-in HD microphone ProductCE、 FCC、 RoHS CertificateSoft silicone earplugs set of rainproof anti-perspiration、 can effectively block redundant noiseSuitable for MID \/ Smart MP3\/MP4\/CD \/ mobile phones \/ radios and other related products with the output of the Audio classPackage includes:1 x Earphone1 x USB Charging Cable1 x Soft  Earplugs