Many neckband earphones come equipped with inline remote controls and built-in microphones for hands-free calling and music playback control. These controls allow users to adjust volume, play/pause music, skip tracks, answer/end calls, and activate voice assistants without having to reach for their device.Wireless neckband earphones are powered by internal batteries that provide hours of continuous playback on a single charge. The battery life varies depending on factors such as usage patterns, volume levels, and battery capacity. Some models also feature quick charging capabilities for added convenience.