Bluetooth connectivity: allows for wireless streaming of music from smartphones, tablets, and other bluetooth-enabled devices. led light display: many models feature color-changing led lights that can sync with the music, creating a dynamic light show. portability: these speakers are often designed to be portable, with built-in rechargeable batteries that offer several hours of playtime. sound quality: despite their compact size, many led bluetooth speakers offer impressive sound quality with good bass and clear highs. built-in microphone: allows for hands-free calling when connected to a smartphone. multiple connectivity options: in addition to bluetooth, some speakers also support aux input, usb, and even microsd cards for versatile playback options. durability: often designed with rugged materials to withstand drops and bumps, making them suitable for outdoor activities.