Juice Relay MG8SYBKG 10 Watt Wireless Bluetooth Speakers with Built in Linking System, Control Unit and Drone Speaker Completely portable - no Wi-Fi or wires required - compatible with most Bluetooth-enabled devices 50 foot range from Control Unit to Drone Unit allows you to stream sound into multiple rooms and connect to multiple Drone speaker units 6 - 8 Hour battery life (Depending on volume level) Water resistant to IP64 standards Box includes: Control speaker unit, Drone speaker unit, Micro USB charging cable, Micro USB plug adapter, 3.5mm audio cable, User manual