Bluetooth wireless allows straightforward wireless pairing of Bluetooth enabled devices; Supports Bluetooth v5.0 with wireless range of 60 feet 2 6.5' full range speakers, FM scan radio and Microphone input USB port: supports audio file playback; Micro-USB port for battery recharge & DC power input Built-in carry handle for easy portability and ultimate convenience; Create a party atmosphere with the LED light effects and Party Plus allows you to pair 2 ISB250B speakers together for even larger sound Built-in rechargeable lithium ion battery: battery life ~5 hours at 50% volume and ~2 hours at 100% volume