FeaturesWireless transmitter & receiver set for electroacoustic musical instruments like guitar, bass, etc.UHF 730MHz original sound transmission, anti-interface and ultra-short delay, giving you the best music sound.Supports 4 sets of devices working at same time, one-to-one; and max. transmission range is up to 50 meters.Built-in rechargeable lithium battery, long working hours; and comes with USB cable for convenient charging.Plug and play, simple to use; compact size and lightweight, easy to carry.Warm Notice: The guitar and guitar amplifier is not included in the package.Specifications Audio Response Range20Hz-20kHzFrequencyUHF 730MHzTransmission RangeMax.50M (No obstacle); 30M (through-wall)Transmission DelayLess Than 4msPower SupplyBuilt-in 3.7V 600mAh rechargeable lithium batteryCharge PortMicro USBItem Size11 x 4.5 x 1.5cm / 4.3 x 1.8 x 0.6inItem Weight35g / 1.2oz (for each)Package Size17.5 x 10.5 x 5cm / 6.9 x 4.1 x 2inPackage Weight250g / 8.8ozPackage Contents1 x Transmitter, 1 x Receiver, 1 x Charging Cable, 1 x Manual