1.UHF high-quality digital transmission, 48K/24bit transmission sound quality, low noise and anti-interference, plug and play.2.4 Channels can be switched with one key, no pairing is required, and 4 groups of devices can be used at the same time, and different devices can choose different channels.3. Indoor transmission distance of 50 meters, and partition wall transmission of 30 meters4.5 hours of high-energy battery life, built-in rechargeable 650mAh polymer lithium battery5.6.35mm international standard audio head, 282degree rotatable, suitable for almost all electric musical instruments, and can be folded close to the musical instrument when in use.1. Transmission sound quality: 48k/24bit digital transmission2. Transmission frequency band: UHF (800MHz-900MHz) frequency band3. Transmission distance: outdoor 50 meters transmission: 30 meters through the wall transmission4. Transmission delay: Greater than 5ms5. Signal to noise ratio: -98db6. Distortion: Less than 0.02%7. Dynamic range: Greater than 105db8. Frequency response: 20-20KHz; +1db/-3db9. Audio head rotation angle: 282degree10. Simultaneous use of multiple devices: 4 groups11. Battery: built-in rechargeable lithium battery, one for two TYPE-C chargingColour:redMaterial:Plastic + MetalSize:13.4 x 3.9cm Package Contents:1 x Guitar System Transmitter1 x Guitar System Receiver1 x cableOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.