BOSS WL-20L Wireless System - Virtual Cable with 50 Feet Range, Low Impedance VersionPlug and play wireless systems for guitar, bass, and other electronic instruments No complicated setup requiredsimply dock the transmitter and receiver together for about 10 seconds to set the optimum wireless connection Newly developed BOSS technology delivers premium audio performance with rock solid stability, ultra low latency (2. 3 ms), and 50 foot 15 meter range (line of sight propagation)* Built in rechargeable batteries provide up to 12 hours