Crystal Clear Sound - Advanced UHF technology, sub-4ms latency, no lag. Supports 4 simultaneous devices with a range of 100 feet for stable, interference-free sound.Simple Plug and Play - Automatically pairs in seconds. Easily switch between active and passive pickup modes. Wireless freedom at your fingertips.Wide Compatibility - Works with guitar, bass, violin, keyboard, and more. Compact and , fits all jack types.Easy to Read and Use - Just plug in and go. Great for beginners and professionals. Designed for maximum convenience or in practice.Long Battery Life - Rechargeable lithium battery provides up to 5 hours of play time with a quick 1.5 hour charge.Colour:BlackMaterial:ABSPackage Contents:2 * transmitter1 * receiver1 * Data CableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.