Tangxi Headset, 4.1 Business Headphone Earphone 70-Day Standby Earpiece with Mic,Sweatproof,Noise Reduction,Mute Switch for Cell Phone, Skype, Truck Driver,Office,Sport - Tangxifus7ihe9c1

• Built-in large-capacity battery supports more than 32 hours of talk time and ultra long standby of up to 70 days based on a single full which only takes about 2.5-hour charging. You can check the remaining battery power on iOS device, like for iPh HD stereo surrounding sound. Independent design of metal cavity for strong anti-interference ability and reducing distortion. Guarantees outstanding sound quality. 4.1 technology, enable stable and long working range of up to 10 meters in open area. CVC noise reduction technology maximizes quality for clearer and stabler phone call. Intelligently compatible with almost all Blue One multifunctional key for easier operation than conventional earphone with many control buttons. Unique CD-design, also comfortable to the touch. Ergonomically-shaped and over-the ear design for snug fit around your ear, cause no burden even after long-time wearing. The 180° rotating earphone head allows you to adjust the angle and fit this headset in right or left ear.