Swingbyte 2 Golf Training Device - Golf&rsquo;s Most Trusted Mobile Swing Analyzer - Includes Mobile App for iPhone and Android Golfs Most Trusted Mobile Swing Analyzer Instant swing data on your smartphone or tablet Attaches easily to any club in your bag, driver through putter Weighs less than 1 ounce, Recharges via USB port Share swing data with your pro and on Facebook