A speaker is an electro-acoustic transducer which transforms an audio signal into a corresponding sound. Miniature speakers are tiny loudspeakers designed for products with small diameter requirements.Miniature speakers have a low profile design with small dimensions, and are fitted with either mylar or paper cones. They often require an external drive circuit to operate.strongWhat are miniature speakers used for?/strongMiniature speakers are common in devices such as radios, televisions, portable audio players, computers, electronic musical instruments and handheld applications. They are beneficial in devices where a high-quality sound is important and also where durability is necessary. These include high duty products like smart home devices, a href="/web/c/computing-peripherals/telecommunications/" target="_self"telecom products/a such as a href="/web/c/computing-peripherals/telecommunications/headsets/" target="_self"headsets/a, and warning controls in manufacturing equipment.strongTypes of miniature speakers/strongMiniature speakers come in various shapes and sizes, and can be wireless, waterproof, or Bluetooth-equipped. They can also be either portable or cabled. Cabled speakers require connection to a power source to receive sound signals over cable audio waves. Portable speakers use wireless or Bluetooth technology over short distances, receiving audio signals via radio frequency waves to produce sound.