Thank you very much for visiting our product page. Brand: NutriChef Color: Black Headphone Type: Open-Ear Model Name: BX15-422 Connectivity Technology: Wireless Wireless Communication Technology: Bluetooth 【Technologically Advanced Open-Ear & Innovative Bluetooth 5.3】These completely wireless earphones, employing innovative technology, do not block the ears, allowing you to be aware of surrounding sounds even outdoors, making them safer. Suitable for exercise, housework, walking on the road, etc. Because they don't block the ears, they don't damage the ear canal and won't cause pain even after wearing them for a long time. Equipped with the latest Bluetooth 5.3, the wireless earphones have a stronger signal and a longer transmission distance of 15m, compatible with iOS/Android. The faster data transmission speed also reduces latency. 【ENC Call Noise Cancellation & 58H Continuous Playback】Built-in main microphone for voice input and secondary microphone with noise filter, designed to detect surrounding noise and reduce it. It suppresses surrounding noise during calls and delivers clear audio to the other party. Utilizing fast Type-C charging technology, the transfer speed is about twice as fast as traditional Micro USB. A full charge allows for 8 hours of playback, and with the charging case, it supports up to 58 hours. You can freely enjoy music, movies, games, calls, and more. 【Automatic Pairing & Ergonomic Ear-Hook Design】When you take the earphones out of the charging case, they automatically turn on and pairing begins. After use, storing them in the charging case automatically turns them off. You are freed from troublesome operations and can enjoy music more comfortably. Once paired with your smartphone, it is automatically remembered, and upon reconnection, opening the lid and taking the earphones out of the charging case will automatically and instantly connect to the device. The open-ear wireless earphones feature an ergonomic design, and the ear-hook part is made of very soft silicone rubber, allowing for free adjustment of the position, perfectly fitting various shapes and sizes of ears. The open feeling of not blocking the ears minimizes the burden on the ears, achieving a more comfortable fit.