This device comes with a USB data line that makes it easy to recharge whenever and wherever you need to. Whether you're at home or on the go, you can keep your music going without worrying about running out of power. With a super high frequency of 730mhz, this device produces crystal-clear sound that can be transmitted up to 30 meters away. Plus, with a transmission delay of less than 4 seconds, you'll never miss a beat. This device is designed to be adjusted to fit your needs perfectly. With a flexible range of 280°, you can adjust the angle to suit your playing style without affecting your rhythm or performance. This device is suitable for use with a wide range of electric musical instruments, including electric guitars, basses, drums, and violins. No matter what type of instrument you play, this device can help you connect with your audience and take your music to the next level. Colour:Black Material:ABS Package Contents: 1 * Guitar System Transmitter 1 * Guitar System Receiver Only the above package content, other products are not included. Note: Light reflection 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.