Fangrui Product Details High-performance Wireless Connectivity: Experience The Freedom Of Playing Your Guitar Or Bass Without The Clutter Of Wires. This 2.4g Wireless System Ensures A Reliable And Stable Signal Transmission, Suitable For Live Performances, Rehearsals, And Recordings. Rechargeable And Portable: Both The Transmitter And Receiver Are Rechargeable, Offering Hours Of Continuous Use On A Single Charge. Their Compact Design Makes It Easy To Carry, Fitting Effortlessly Into Your Gig Bag. Versatile Compatibility: Designed To Be Universally Compatible With A Variety Of Electric Instruments, This Wireless System Is An Essential Accessory For Every Musician Looking To Go Wireless. Frequency Band Range: 550.25-573.75mhz Receiver Sensitivity: -88db Power Supply: Dc5v Total Harmonic Distortion: 0. Dynamic Range: 110db Output Power: 10mw Frequency Response: 20hz-20khz[3db] Transmission Distance: 30-50m Due To Different Batches, There May Be Differences In Product Appearance And Printed Text, Which Not Affect Use Colour:a:wh