Baseus B11 Licolor Magnet Neckband In-Ear Bluetooth Headset Wireless Stereo Music Earphone Bluetooth V4.1 Aluminum Alloy+ABS+TPE Material Magnet Fixed Design Waterproof HD Microphone Multi Pointing Smart Noise Reduction Multi-functions Wire Control Clear Sound Quality Built-in 60mAh Rechargeable Battery 5-7 Hours Working Time 180 Hours Standby Time 1.5 Hours Charging Time High Compatibility Fine Process Stylish Fashion Design. Aluminum alloy shell takes strong magnetic absorption design, easy to wear and fashionable and convenient to carry, can be absorbed and fixed firmly on the neck when take if off, feels comfortable and will not fall when do exercise, walk and take a car. Complies with ergonomic oblique in-ear-monitor design, fits cochlea comfortably, small and light weight design doesn’t bring extra burden to ear and squeeze auricular, it’s still comfortable and fixed firmly after long-term use.