Model Number : guitar systemType : Guitar Transmitter ReceiverBrand Name : AROMAOrigin : Mainland ChinaMaterial : ABS + MetalFeatures:High-quality wireless audio transmission system(transmitter + receiver) for microphone with XLR connector.4 different frequencies raging from 5.729G to 5.820G for convenient and stable signal transmission without interruption.24bit/48kHz high resolution audio signal and less than 6ms low delay time.Built-in rechargeable battery, lower power consumption and longer work time(transmitter 75mA, receiver 60mA).Charging by 5V USB cable connecting to power bank, computer, laptop or power adapter, very convenient.With ID channel indicator an low power warning indicator.Specifications:Brand: AROMAModel: ARC1Channel: 4Frequency: 5.729G to 5.820GSignal Noise Ratio: 140dBSound Quality: 24bit/48kHzDelay: less than 6msMax. Transmission Range: 35m(no obstacles)Charging Time: 4HWorking Time: 2-4HStandby Time: 4HBattery: 3.7V 450mAh rechargeable battery(transmitter), 3.7V 360mAh rechargeable battery(receiver)Item Weight: 117g/ 4.1oz(Transmitter + Receiver)Package Size: 13 * 12.5 * 4cm/ 5.1 * 4.9 * 1.6inPackage Weight: 190g/ 6.7ozPackage List:1 * Transmitter1 * Receiver1 * USB Charging Cable1 * Users' Manual(English & Chinese)