HIGH-END TECHNOLOGY: Our amazing guitar wireless transmitter and receiver uses UHF digital transmission technology. This technology makes the sounds penetrate walls and prevents any frequency interferences. PRACTICAL AND LIGHTWEIGHT: The guitar wireless system has a lightweight and compact design that makes it super practical. Also, the wireless transmitter can support up to 99 pieces of equipment without interfering with each other. BUILT-IN BATTERY: Our wireless instrument system comes with a built-in rechargeable battery. It can be easily recharged using a USB cable. The battery can last up to 6 hours, in full-working mode. AMAZING SOUND: Thanks to advanced UHF technology, the guitar transmitter offers amazing sound quality. It has a low sound latency and can transmit the sound to a distance up to 30-50m. The sound transmission is stable, with a high audio reproduction. WIRELESS SYSTEM: The swiffs WS-70 guitar wireless system is the ultimate technology for music instruments. The device is designed to replace the annoying cables, providing a more convenient way to make your music heard. Size Chart: 80x29mm/3.15x1.14inch Package Includes: 1*Wireless Microphone Receiver 1*Wireless Microphone Transmitter 1*USB Cable 1*Manual Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!