This is the speakerphone that enables cyclists to conduct hands-free cell phone conversations. Attaching securely to a bicycle's handlebars using two hook-and-loop fasteners, the speakerphone's case zips open to reveal a protective insert that holds a cell phone as well as keys and an ID. Cell phones connect to the speakerphone via Bluetooth. Calls are answered or rejected at the touch of a button on the speakerphone's control panel; also provides volume control. Two 2-watt speakers provide clear, unambiguous voice clarity using echo cancellation and noise suppression technology. It can also play music from a cell phone or an MP3 player connected via the integrated 3.5mm jack; If listening to music from a cell phone, the call button will illuminate and the speakerphone will play a sound to notify riders of incoming calls. Includes three AA batteries. 7 3/4" W x 3 1/4" H x 4 1/4" D. (12 1/2 oz.)