PlugandPlay Phone Speaker Amplifier Key benefits Quick, settings setup: plug in and use immediately. No software, no configuration. Onesecond link for fast connection. Clear problem solver: boosts the output of a phone's builtin loudspeaker up to five times, making audio louder and easier to hear in group settings. Enhanced listening experience: louder sound helps viewers feel more immersed in videos, music, and presentations without external speakers. What it does Function: plugandplay enhancement that increases the volume of a phone's builtin loudspeaker. Performance: up to five times louder output for clearer, more impactful audio. Convenience: oneshot plugin operation with immediate usability, reducing setup time and avoiding cumbersome steps. Compatibility Designed to work with standard mobile phone loudspeakers, providing a straightforward way to improve playback without additional devices or apps. Use scenarios Classroom or meeting room: share phone video or audio with a small group so everyone can hear clearly. Outdoor gathering or casual event: boost phone playback for music, announcements, or video clips to reach a larger audience. Home viewing or listening: watch videos or listen to music on a phone with noticeably louder, more immersive sound. Notes No extra settings required; plug in and use. Amplification refers to increasing the loudness of the phone's builtin speaker.