Speaker Cleaner, Water Eject by Techlab Studio enters a niche but practical corner of the Android tool market. It addresses a frequent issue smartphone users face: muffled audio caused by debris or moisture accumulation in speaker grilles. The app's premise is simple—generate low-frequency sound waves to physically vibrate and eject unwanted particles. While not a substitute for professional repair, it positions itself as a first-line, non-invasive solution for minor blockages. The functionality centers on a minimalist interface with dedicated buttons for different cleaning actions. Users can select modes targeting the bottom speaker, earpiece, or a general water ejection sequence. Each mode plays a distinct, low-pitched tone for a set duration, typically around 30 seconds. The app also includes a decibel meter, purportedly to show the sound pressure being generated, and a testing function to play a sample sound after cleaning. Some versions feature a playful animated cat, which, while charming, is unrelated to the core technical process. The entire operation requires no special permissions, relying solely on audio output. In real-world use, the app performs a single task with minimal friction. The process is intuitive: select a mode, place the phone on a flat surface, and let the tone play. Scenarios where it shows potential include after accidental exposure to light rain or when pocket lint begins to affect speaker clarity. However, its efficacy is highly dependent on the nature and depth of the blockage. Superficial dust may be dislodged, but hardened debris or water deep within the chassis likely remains unaffected. The experience is consistently interrupted by frequent, full-screen video advertisements, which appear after almost every action within the app, from launching a cleaning cycle to navigating back to the main menu. User feedback, as seen in store reviews, reveals a clear pattern. Many express genuine surprise that the app functions at all, with numerous five-star ratings citing successful clearing of muffled speakers. Comments like 'props to this I was so surprised it actually worked' highlight this positive reaction. Conversely, the most common critique revolves around the aggressive ad implementation, noted in virtually every review that mentions a drawback. A few users pragmatically note its situational utility, stating 'it's not that good if you don't have a lot of dust in it.' The presence of whimsical reviews praising an animated cat also suggests the developer has included elements that foster user affection beyond pure utility. Ultimately, Speaker Cleaner, Water Eject offers a legitimate, physics-based attempt at solving a real problem, and for minor obstructions, it can provide noticeable improvement. Its major limitation is an ad-supported model that significantly disrupts the user experience. The app is a useful digital tool to try before seeking hardware fixes, but its value is directly proportional to a user's tolerance for advertisements.