The Siren from Spy is a Happiness Guaranteed wireless Bluetooth speaker that offers robust sound. The built-in mic and controls facilitate hands-free talking and audio control. You can enjoy 4 hours of continuous music playtime on a single charge with the built-in rechargeable lithium-ion battery. An LED light provides instant access to the charging status and Bluetooth connection mode. The rubberized coating offers enhanced durability and protection. The Siren has all the features needed for enjoying your music wirelessly, as well as answering incoming calls, both with 10 meters of Bluetooth transmission distance. The Siren comes in 2 distinct colors.