[Bone Conduction] B2 Sport Foldable bluetooth Earphone Headphone With Mic

Features:1. Bone Conduction Design: no need to put it into ears, no eardrum damage, good for user to avoid ear disease and hearing losing.2.Perfect for sports: Sweat-resistant design immerse you in sports and music, suitable for walking, hiking, running, and etc.3.Long Battery Life: Built-in 180mAh rechargeable Li-polymer battery, provides approximately 6 hours of playback time.4. Portable and Comfortable: ergonomics design, balanced wear, tight on the ear. Foldable design, easy to carry and store.5. Wide Compatibility: Compatible with almost all bluetooth-enabled mobile devices.Specifications:General SpecificationModel B2Color Red, GreenWearing Type Bone ConductionTechnical Parameters Microphone Yes bluetooth Version V4.0 Transmission Distance 10mMicrophone Sensitivity -42dBImpedance 32Frequency Response 100-18000Hz Battery Capacity 180mAh, 3.7V Charging Time (h) 2 hours Working Time (h) 6 hours Standby Time (h) 30 daysPackageIncluded:1* B2 bluetooth Earphone1* Charging Cable1* Storage Bag1* Manual