Feature:1. Wireless audio transmission system powered by built-in rechargeable lithium batteries, are suitable for guitar, bass and other instruments with 6.35mm audio output jack.2. Receiver adopts the true diversity receiving method to make the signal transmission more stable, and transmitter with 6.35mm mono audio plug, 60 rotatable, compatible for different audio jack position.3. Transmitter and receiver are matched automatically when power on, one button for all control, easy and convenient to use.4. UHF frequency and FM high fidelity coding technology, delay time less than 5ms, without compression or distortion, and max. 20M transmission range.5. 5 built-in UHF channels indicated by different color LED light: 863.7MHz-- red, 866.7MHz-- green, 869.7MHz-- blue, 872.7MHz-- yellow(red + green), 876.7MHz-- purple(red + blue).Specification:Features:Wireless audio transmission system powered by built-in rechargeable lithium batteries, are suitable for guitar, bass and other instruments with 6.35mm audio output jack.Receiver adopts the true diversity receiving method to make the signal transmission more stable, and transmitter with 6.35mm mono audio plug, 60° rotatable, compatible for different audio jack position.Transmitter and receiver are matched automatically when power on, one button for all control, easy and convenient to use.UHF frequency and FM high fidelity coding technology, delay time less than 5ms, without compression or distortion, and max. 20M transmission range.5 built-in UHF channels indicated by different color LED light: 863.7MHz-- red, 866.7MHz-- green, 869.7MHz-- blue, 872.7MHz-- yellow(red + green), 876.7MHz-- purple(red + blue).Specifications:System Frequency Response: 40Hz-18kHzChannel: 5 UHF ChannelsFrequency: 863.7MHz/ 866.7MHz/ 869.7MHz/ 872.7MHz/ 876.7MHzTransmission Range: Max.20M (No obstacle)Transmission Delay: Less Than 5msSignal Noise Ratio: <-85dBPower Supply: Built-in 3.7V 380mAh rechargeable lithium batteryCharge Port: Micro USBReceiver Size: 15 * 6 *2cm / 5.9 * 2.4 * 0.8inReceiver Weight: 115g / 4.1ozTransmitter Size: 12 * 2.5 * 2cm / 4.7 * 1 * 0.8inTransmitter Weight: 47g / 1.7ozPackage Size: 19 * 17 * 3cm / 7.5 * 6.7 * 1.2inPackage Weight: 230g / 8.1ozNote:The guitar showed in the picture are not included.Package List:1 * Transmitter1 * Receiver1 * User Manual(English & Chinese)1 * USB Charging CablePackage List:1 * Transmitter1 * Receiver1 * User Manual(English & Chinese)1 * USB Charging Cable