The guitar instrument UHF wireless transmitter adopts UHF high-frequency noise reduction wireless technology, which can transmit up to 50 meters and the signal is stable, easy to get rid of the cable restraint, and the performance is more exciting Adjustable volume down / FM key volume up / FM key power on key The transmitter and receiver can be rotated by 90 degrees, which can be easily inserted into the audio hole of the instrument, making it more flexible to use The transmitter is plugged into electric guitar, electric bass, electronic organ and other plug-in instruments, and the receiver is plugged into speakers and other power amplifier devices to use Long Battery Life--Built-in lithium battery with over 5-6 hrs battery life once fully charged, enough to enjoy the wireless world in your gig. Model: T508 Sampling frequency: 530MHz-690MH Pairing method: automatic pairing Transmission method: UHF Built-in battery: 650mAh colour: black Material: ABS Size: 8x3x2cm Package Contents: 1 x transmitter 1 x receiver 1 x charging cable Only the above package content, other products are not included. Note: Light shooting 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.