Description: 100% brand new and high quality Compact size and lightweight, easy to carry. Using the latest Bluetooth 4.1 + EDR technology, excellent signal transmission, ultra-low power consumption Supports all Bluetooth devices, supports auto answer function, no need to manually answer the phone when talking , safe driving Large button design, the best choice for men. Built-in high-quality anti-interference microphone, external windproof sponge, can effectively realize hands-free answering, hang up the phone, high fidelity sound Support music up and down, add and subtract sound volume, play pause , automatic callback and other functions, easy to operate, easy to use Built-in high-quality headset with speaker, strong bass, clear mid-range, high sound. Built-in mini USB charging interface ensures fast and simple charging. Built-in large capacity lithium battery, multiple circuits, long standby time and working time. Technical data: Type: advanced type Color: black Size: about 215*44*15mm Gross weight: about 110g Bluetooth: 4.1 + EDR Transmission range: about 10m Frequency range: 2.4026-2.480GHz Microphone range: le; 1mSNR: 80dBCharging voltage: 5V Battery: built-in 3.7V 150mA lithium battery Charging time: about 2.5h Standby time: about 60 hours Continuous working time: about 6h Product features: listen to music, answer incoming calls, voice navigation, voice call. Scope of application: support Apple, Samsung , Xiaomi, Huawei and other smartphones, compatible with iPad, notebook, desktop computer and other digital devices. Package includes: 1 * headphones 1 * USB cable 2 * hat ears 1 * user manual