Can connect to all 3.5mm earphone plug from MP3 players, iPods, Mobile Phones, Tablets and PC It can stock onto different objects such as carton , box, wndow and etc. The object is capable or producing a big booming sound. Frequency : 300x1000Hz Noise : 78db Rating : 1W Power : 3V ( Battery ) / 5V ( USB) 10 working days delivery lead time from Malaysia