Denash Single Bluetooth 4.1 Waterproof Headset, Business Wireless Earphone Headphone, Noise Cancelling Earpiece 70 Day Standby

【Ultra Long Standby】: Built-in large-capacity battery supports more than 32 hours of talk time and amazing ultra long standby of up to 70 days, making that you do not have to frequently charge it if not use it very often, based on a single full charge which only takes about 2.5-hour charging. 【HD Stereo Surrounding Sound】: Independent design of metal cavity for strong anti-interference ability and reducing distortion. The Bluetooth earphone with noise reduction mic will bring you crystal clear sound and guarantee a clear phone call even in noisy environment, Guarantees outstanding sound quality. 【Waterproof & Noise Reduction Design】: Business wireless earphone headphone is ideal for sports and daily use, sweat will not affect the normal use of the headset. Bluetooth 4.1 technology, enable stable signal transmission and long working range of up to 10 meters in open area. CVC noise reduction technology maximizes signal quality for clearer and stabler phone call. 【Widely Compatible & One-key Control】: Noise cancelling earpiece intelligently compatible with almost all Bluetooth-enabled cellphones, tablets and other devices. You can check the remaining battery power on device, one multifunctional key for easier than conventional earphone with many control buttons. Unique CD-design, also comfortable to the touch. 【Ergonomic Design】: 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.