Portable wireless audio transmitter & receiver, about 50m effective transmission range.Adopts and with SMD electronic components, fast transmission.Supports 1-6 sets working at the same time, strong anti-jamming. and lightweight, convenient to and carry around.Suitable for electric guitar, bass, electric violin and other electroacoustic instruments.COLOR: black Material: plasticComes with a 6.35mm to 3.5mm adapter for connecting with different audio devices.Working Frequency: VHF 200-271MHzTransmission Range: About 50M (No obstacle)Frequency Response: 60Hz-18KHzWorking Temperature: -10 Celsius -50 Celsius Power Supply: 2 * AA Batteries for each (Not included)Item Size: 11 * 3.5 * 2.5cm / 4.3 * 1.4 * 1inItem Weight: 35g / 1.2oz(single, excluding batteries)Note: Batteries are not included.The guitar and speaker showed in the are not included.Package List: 1 * Transmitter(Green LED)1 * Receiver(Red LED)2 * Antennas1 * 6.35mm to 3.5mm AdapterOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.