随意炫字风扇2 vs Decibels Meter

New design LED display word fan. Using new LED light board with small fan at high speed,to control the light order and time. Use persistence of vision effect to achieve pattern or text.The user can edit the text content freely in APP of mobile phone.And a series of turns flashing mode.It looks very natural and smooth and help your expression under 360°all-round real show.

Concert Decibel Meter - Your Professional Sound Wave Monitoring Assistant When you're surrounded by the sound waves of a concert or music festival, are you curious about the decibel level? Want to share the electrifying experience with the world? The Concert Decibel Meter is your professional sound wave monitoring assistant. 【Core Functions】 Real-time Decibel Monitoring: Accurately captures and displays the real-time decibel value of the venue. From "rhythm warm-up" to "raging sound waves," it uses the most knowledgeable terms about the venue to intuitively tell you the sound pressure level you're in. Watermark Camera: Built-in camera captures moments directly from the venue. Automatically generates cool watermarks, creating a unique souvenir of your visit. Hardcore Hearing Protection: More than just measurement, it's your intelligent guardian of hearing. When the volume reaches a dangerous level, the app will issue a strong alert, reminding you to immediately activate hearing protection mode.