Baseus B11 Magnet Bluetooth Headset: 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. 1. Magnetic Fixed Design: Aluminum alloy shell takes strong magnetic absorption design, easy to ware 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. 2. Wear Stability: 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. 3. High Fidelity Sound Quality: Built-in high rate decoding chips, transfer music at high magnification code rate and stable high speed, Hi-Fi live music, like being present on different music scenes. 4. Soft TPE Cable: Headphone cable is made by TPE which is one-batch forming connection, soft and anti-twine, takes SR reinforced connection in joint, no need to worry about breaking off issue for long-term use. 5. Simple Wired Control Design: Simple and visual wired design button, easy to operate, switch song, adjust volume and answer calls at any time, convenient and fast. General Specification Brand Baseus Model B11 Licolor Color Pink, Black, Silvery White Wearing Type In-ear Material ABS+alluminium alloy Technical Parameters Microphone Yes Wired Control Support Bluetooth Version 4.0 Transmission Distance 10 meters Frequency Response 20-20,000Hz Battery Capacity 60mAh Charging Time (h) 1.5 hours Working Time (h) 5-7 hours Standby Time (h) 320 hours Package Included: 1* Baseus earphone 6* earmuffs 2* ear-hooks 1* charging cable 1* user manual