2.4GHz wireless guitar system, offering up to 8 hours of playtime. *Please consider your purchase carefully.* (The transmitter was the main issue for me.) I measured the part of the transmitter that plugs in, and it was around 3cm. It might not be suitable for those with guitars that have a slightly thicker body + a recessed jack, like mine. (It only goes in halfway... it's unusable.) ~Product Description~ - Model: LGW-01 - Type: Wireless System - Frequency Band: 2.4GHz - Dynamic Range: 103dB - Latency: 5ms - Playtime: Up to 8 hours - Simultaneous Connections: 4 channels - Included: USB charging cable ! Everything that came with it when I bought it is included! I bought it recently. I haven't used it much... or rather, I couldn't use it... If you need it, please! Thank you for looking.