1.Electric wireless guitar receiver transmitter compatible with of guitars, bass,ukuleles, and brings convenience to your music life.  2. wireless guitar system utilizes professional technology, operating in 2.4GHz frequency, high frequency which less than 12.5ms latency, basically no lag or no signal loss.  3. wireless guitar system supports 4 sets of devices working at same time, one-to-one and no-interference. And one transmitter can transmit the signal to several receivers at the same time, the effective range is about 50 meters.  4.The wireless guitar system has a rechargeable lithium battery and can work for a long time. It comes with a USB cable for convenient recharging, which ensures your playing more exciting, uninterrupted at critical moments.  5.Easy to Use: 280° rotatable 6.35mm plug fits instruments with input jacks in different positions. Built-in rechargeable 3.7V ,600mah lithium battery for longer working hours. It is equipped with a USB charging cable for convenient charging.    Item Size: 12x4cm  Frequency range: 2.4GHZ-2.483GHZ  Audio Response Range: 20Hz-20kHz  Transmission Delay: Less Than 12.5ms  Transmission Range: Max.50M (No obstacle); 30M (through-wall)  Power Supply: Built-in 3.7V 600mAh rechargeable lithium battery  Charge Port: Micro-USB  Charging time: 2 hours  Use time: 4~6hours  Material:ABS  colour:Black    Package Contents:  1 x Transmitter  1 x Receiver  1 x USB Charging Cable  1 x English manual    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.