wireless guitar transmitter receiver 2.4g built-in rechargeable lithium battery 30m transmission range for electric guitar

['wireless transmitter & receiver set designed for electronic music instruments like guitar, bass, etc.', '2.4g uncompressed wireless signal transmission, low noise and latency, effective range is about 30 meters.', 'supports 6 sets of devices working at same time, one-to-one and no-interference.', 'built-in rechargeable lithium battery, long working hours, and comes with usb cable for convenient recharging.', '280\xc2\xb0 rotatable 1/4" plug, available for instruments with input jack in differ