Joyo JW-03 Wireless Guitar Transmitter Receiver 2.4G Digital Guitar/ Bass System Digital Wireless Transmitter Receiver High-quality tone, all digital ,2.4GHz, UHF frequency Transmission distance of 20-30 meters indoor;80-100 meters outdoor. Unlike analog transmitters, our digital system is not affected by outside signals or phones. This unit works well even when 6-8 pairs are operating simultaneously within one meter. They do not have interference by each other, wireless routers, Bluetooth devices, etc.. Dynamic Range: 87dB Support "One to Many"(one transmitter to one or many amplifiers) Low-latency Battery: Lithium battery(included; lasts for approximately 4-5 hours after a charge of 2 hours) Power adapter and USB cable included ( guitar NOT included ) No Duty to Canada and USA FAST 'N FREE USA Shipping (typically about 4 days via USPS ) Ships from Canada *Just to be clear on DUTY, (regardless of what warns buyers of ) Canada and the USA have a trade agreement in place that allows US citizens to purchase/import up to $800 dollars per purchase in to the United States from Canada with NO Duty at all, State taxes are another story, some states charge a TAX some do not, BUT NO duty.