"The Guitarist" by Karsect Electronics is a VHF wireless instrument system.

One complete set includes the transmitter pack (battery included), the guitar transmitter cable, and the powerful KRV-100 receiver.x

KRV-100 SPECIFICATION

CARRIER FREQUENCY VHF 170-260MHz
FREQUENCY STABILIZATION LESS THAN 0.002%
DYNAMIC RANGE MORE THAN 90dB
TOTAL HARMONIC DISTORTION LESS THAN 0.5%
FREQUENCY RESPONSE 50Hz-15KHz±3dB
AUDIO OUTPUT LEVEL 0-300mV
POWER SUPPLY 120V AC ADAPT
POWER REQUIREMENTS 12-18V DC NOMINAL
SIGNAL/NOISE RATIO MORE THAN 90dB
IMAGE AND SPURIOUS REJECTION MORE THAN 80dB
BORDER UPON CHANNEL REJECTION MORE THAN 85dB
RECEIVING SENSITIVITY -105dBm
Maximum range up to 265 ft. (80meters) typical(depending on site conditions);up to 490 ft. (150meters) optimum line-of -sight