Xvive's U2 is one of the most compact wireless guitar systems on the market. It consists of a transmitter that plugs into your guitar and a receiver that plugs into your amplifier. Both devices are rechargeable and a USB cable is included for that purpose. The system operates at 2.4 GHz to ensure crystal-clear broadcasting over a distance of up to 30 metres and the batteries last up to 5 hours on a full charge.