The Shure GLXD16 Guitar Wireless System is an intuitive, pro-level wireless system at a musician-friendly price. The system can be used anywhere in the world without succumbing to signal interference from other bandwidths, as it will automatically switch frequencies if it detects any. It also comes with chargeable batteries that provide 17 hours of play time for every 3 hours charged. The Shure GLXD16 is a highly durable wireless system that produces crystalline tones.