Basic InfoMini: Mini Bluetooth Headsets KS-Mini Model Ergonomic Bluetooth Headphones1. USB charging port on product body , not on control pannel , it avoid big size control pannel.2. Concealed LED indicator on product, which can reflect turn on/off models.3. Natural Nontoxic silica Gel, soft and comfortable to wear, strengthen bass effect.4. High sensitive microphone.Product Parameters: Mini Bluetooth Headsets KS-Mini Model Ergonomic Bluetooth HeadphonesBluetooth Version4.1Bluetooth protocolHSP,HFP,A2DP and AVRCPSupportSBC , MPS decoder and APT-XTalking / Playing time8 hours/ 6 hoursStandby time300 hoursCharging time2 hoursTransmission distanceAbout 10 metersWeight11.8gImpedance16 ohmFrequency response20-20kHzLoudspeaker size8mmSensitivity100 /-3dbCharging input5V/200mACertificationsBQB, CE, RoHS, REACH,FCCOEM/ODMYesBluetooth headphone styleIn-earMini Bluetooth Headsets KS-Mini Model Ergonomic Bluetooth Headphones PictureMini Bluetooth Headsets KS-Mini Model Ergonomic Bluetooth HeadphonesRecommendations: Ear Hook Earphones for Handsfree Ergonomic Bluetooth Earbuds                                  In-ear Sports Mono Earphones Hifi Ergonomic Bluetooth Earbuds                                  Mini Anti-radiation Bluetooth Headsets Ergonomic Bluetooth Earpieces                                  Mini Handsfree Bluetooth Headsets Hifi Bluetooth Earphones