2.4G uncompressed wireless signal transmission, low noise and latency, effective range is about 30 meters. Built-in rechargeable lithium battery, long working hours, and comes with USB cable for convenient recharging. Supports 6 sets of devices working at same time, one-to-one and no-interference; and one transmitter can transmit signal to several receivers at the same time. 280 rotatable 1/4inch plug, available for instruments with input jack in different positions. Wireless transmitter & receiver set designed for electronic music instruments like guitar, , etc. Color: Black Material: ABS Package Contents: 1 x Wireless receiver 1 x Wireless transmitter 1 x USB cable 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.