Clear Quality Signal Transmission-2.4GHz band is optimal for guitar wireless system,low noise,low latency(less than 5mS), no interference, over 20 meters transmission distance.High Compatibility-The plugs can be rotated for 220 degrees, compatible for most electric guitars, bass, acoustic guitars and other digital music instruments, the device are approved for worldwide use.Easy to Pair-Turn on the transmitter and the receiver, press the pairing button of the receiver,then press the pairing button of the transmitter for more than 2 seconds,then they're paired successfully.-friendly-The double-sided USB cable can charge the transmitter and receiver simultaneously,easy to switchover between the 4 signal channels.Long Battery Life-Built-in battery with over 8 battery life fully , enough to enjoy the wireless world in your .Material:ABS+Metalcolour:BlackPackage Contents:1 * Transmitter1 * Receiver1 * USB 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.