Cy-Fi Wireless Sports Speaker for iPod (Silver) Cy-Fi Wireless Sports Speaker for iPod; Silver; Use CyFi with your iPod No Wires! Small Adapter for your iPod allows Wireless music play to the Speaker Remote Controlled- Change the track, volume and playlist settings from your speaker Mountable -Easily mount CyFi on your bike, boat, backpack, etc., with the provided hardware Battery Life- Over 5.5 hours; Wireless Range- 30 feet Lightweight- less than 4 ounces