Hangout HO-052 Speaker @ Rs 499 Built-in rechargeable polymer battery lasts up to 2-4H of continuous use ON/OFF Switch to save battery life while not in use Red light: Charging, Blue Light: Charging full/working Provides output power of 3W http://www.amazon.in/Hangout-Bluetooth-Speaker-HO-052--Black/dp/B019H6UAOS